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Finding the Fourth Proportional to 501,776.83, 752,665.38 and 221,490.91

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Solution

The fourth proportional to 501,776.83, 752,665.38 and 221,490.91 is: 332,236.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,776.83 : 752,665.38 = 221,490.91 : x
  2. Step 2: Convert to fraction form
    501,776.83/752,665.38 = 221,490.91/x
  3. Step 3: Cross multiply
    501,776.83x = 752,665.38 × 221,490.91
  4. Step 4: Simplify right side
    501,776.83x = 166,708,539,941.70
  5. Step 5: Solve for x
    x = 166,708,539,941.70/501,776.83
  6. Step 6: Final answer
    x = 332,236.42

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.