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Finding the Fourth Proportional to 306,349.36, 459,545.88 and 81,708.52

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Solution

The fourth proportional to 306,349.36, 459,545.88 and 81,708.52 is: 122,568.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,349.36 : 459,545.88 = 81,708.52 : x
  2. Step 2: Convert to fraction form
    306,349.36/459,545.88 = 81,708.52/x
  3. Step 3: Cross multiply
    306,349.36x = 459,545.88 × 81,708.52
  4. Step 4: Simplify right side
    306,349.36x = 37,548,813,726.90
  5. Step 5: Solve for x
    x = 37,548,813,726.90/306,349.36
  6. Step 6: Final answer
    x = 122,568.61

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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.