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Finding the Fourth Proportional to 418,368.89, 577,349.13 and 227,382.27

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Solution

The fourth proportional to 418,368.89, 577,349.13 and 227,382.27 is: 313,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,368.89 : 577,349.13 = 227,382.27 : x
  2. Step 2: Convert to fraction form
    418,368.89/577,349.13 = 227,382.27/x
  3. Step 3: Cross multiply
    418,368.89x = 577,349.13 × 227,382.27
  4. Step 4: Simplify right side
    418,368.89x = 131,278,955,761.93
  5. Step 5: Solve for x
    x = 131,278,955,761.93/418,368.89
  6. Step 6: Final answer
    x = 313,787.57

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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.