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Finding the Fourth Proportional to 274,364.56, 378,605.28 and 153,484.96

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Solution

The fourth proportional to 274,364.56, 378,605.28 and 153,484.96 is: 211,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,364.56 : 378,605.28 = 153,484.96 : x
  2. Step 2: Convert to fraction form
    274,364.56/378,605.28 = 153,484.96/x
  3. Step 3: Cross multiply
    274,364.56x = 378,605.28 × 153,484.96
  4. Step 4: Simplify right side
    274,364.56x = 58,110,216,256.59
  5. Step 5: Solve for x
    x = 58,110,216,256.59/274,364.56
  6. Step 6: Final answer
    x = 211,799.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.