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Finding the Fourth Proportional to 268,630.59, 370,711.06 and 147,781.06

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Solution

The fourth proportional to 268,630.59, 370,711.06 and 147,781.06 is: 203,938.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,630.59 : 370,711.06 = 147,781.06 : x
  2. Step 2: Convert to fraction form
    268,630.59/370,711.06 = 147,781.06/x
  3. Step 3: Cross multiply
    268,630.59x = 370,711.06 × 147,781.06
  4. Step 4: Simplify right side
    268,630.59x = 54,784,073,400.52
  5. Step 5: Solve for x
    x = 54,784,073,400.52/268,630.59
  6. Step 6: Final answer
    x = 203,938.33

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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.