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Finding the Fourth Proportional to 239,356.79, 359,044.29 and 89,581.31

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Solution

The fourth proportional to 239,356.79, 359,044.29 and 89,581.31 is: 134,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,356.79 : 359,044.29 = 89,581.31 : x
  2. Step 2: Convert to fraction form
    239,356.79/359,044.29 = 89,581.31/x
  3. Step 3: Cross multiply
    239,356.79x = 359,044.29 × 89,581.31
  4. Step 4: Simplify right side
    239,356.79x = 32,163,656,051.00
  5. Step 5: Solve for x
    x = 32,163,656,051.00/239,356.79
  6. Step 6: Final answer
    x = 134,375.37

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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.