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Finding the Fourth Proportional to 239,707.71, 359,468.10 and 89,866.33

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Solution

The fourth proportional to 239,707.71, 359,468.10 and 89,866.33 is: 134,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,707.71 : 359,468.10 = 89,866.33 : x
  2. Step 2: Convert to fraction form
    239,707.71/359,468.10 = 89,866.33/x
  3. Step 3: Cross multiply
    239,707.71x = 359,468.10 × 89,866.33
  4. Step 4: Simplify right side
    239,707.71x = 32,304,078,000.40
  5. Step 5: Solve for x
    x = 32,304,078,000.40/239,707.71
  6. Step 6: Final answer
    x = 134,764.45

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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.