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Finding the Fourth Proportional to 239,147.79, 358,727.10 and 89,306.34

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Solution

The fourth proportional to 239,147.79, 358,727.10 and 89,306.34 is: 133,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,147.79 : 358,727.10 = 89,306.34 : x
  2. Step 2: Convert to fraction form
    239,147.79/358,727.10 = 89,306.34/x
  3. Step 3: Cross multiply
    239,147.79x = 358,727.10 × 89,306.34
  4. Step 4: Simplify right side
    239,147.79x = 32,036,604,359.81
  5. Step 5: Solve for x
    x = 32,036,604,359.81/239,147.79
  6. Step 6: Final answer
    x = 133,961.53

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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.