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Finding the Fourth Proportional to 425,342.87, 586,999.29 and 234,356.21

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Solution

The fourth proportional to 425,342.87, 586,999.29 and 234,356.21 is: 323,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,342.87 : 586,999.29 = 234,356.21 : x
  2. Step 2: Convert to fraction form
    425,342.87/586,999.29 = 234,356.21/x
  3. Step 3: Cross multiply
    425,342.87x = 586,999.29 × 234,356.21
  4. Step 4: Simplify right side
    425,342.87x = 137,566,928,877.09
  5. Step 5: Solve for x
    x = 137,566,928,877.09/425,342.87
  6. Step 6: Final answer
    x = 323,425.97

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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.