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Finding the Fourth Proportional to 498,344.33, 747,490.37 and 143,344.41

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Solution

The fourth proportional to 498,344.33, 747,490.37 and 143,344.41 is: 215,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,344.33 : 747,490.37 = 143,344.41 : x
  2. Step 2: Convert to fraction form
    498,344.33/747,490.37 = 143,344.41/x
  3. Step 3: Cross multiply
    498,344.33x = 747,490.37 × 143,344.41
  4. Step 4: Simplify right side
    498,344.33x = 107,148,565,351.61
  5. Step 5: Solve for x
    x = 107,148,565,351.61/498,344.33
  6. Step 6: Final answer
    x = 215,009.10

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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.