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Finding the Fourth Proportional to 221,581.50, 332,372.25 and 55,369.50

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Solution

The fourth proportional to 221,581.50, 332,372.25 and 55,369.50 is: 83,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,581.50 : 332,372.25 = 55,369.50 : x
  2. Step 2: Convert to fraction form
    221,581.50/332,372.25 = 55,369.50/x
  3. Step 3: Cross multiply
    221,581.50x = 332,372.25 × 55,369.50
  4. Step 4: Simplify right side
    221,581.50x = 18,403,285,296.38
  5. Step 5: Solve for x
    x = 18,403,285,296.38/221,581.50
  6. Step 6: Final answer
    x = 83,054.25

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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.