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Finding the Fourth Proportional to 239,392.68, 359,098.10 and 89,617.20

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Solution

The fourth proportional to 239,392.68, 359,098.10 and 89,617.20 is: 134,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,392.68 : 359,098.10 = 89,617.20 : x
  2. Step 2: Convert to fraction form
    239,392.68/359,098.10 = 89,617.20/x
  3. Step 3: Cross multiply
    239,392.68x = 359,098.10 × 89,617.20
  4. Step 4: Simplify right side
    239,392.68x = 32,181,366,247.32
  5. Step 5: Solve for x
    x = 32,181,366,247.32/239,392.68
  6. Step 6: Final answer
    x = 134,429.20

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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.