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Finding the Fourth Proportional to 239,149.79, 358,730.10 and 89,308.34

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Solution

The fourth proportional to 239,149.79, 358,730.10 and 89,308.34 is: 133,964.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,149.79 : 358,730.10 = 89,308.34 : x
  2. Step 2: Convert to fraction form
    239,149.79/358,730.10 = 89,308.34/x
  3. Step 3: Cross multiply
    239,149.79x = 358,730.10 × 89,308.34
  4. Step 4: Simplify right side
    239,149.79x = 32,037,587,945.38
  5. Step 5: Solve for x
    x = 32,037,587,945.38/239,149.79
  6. Step 6: Final answer
    x = 133,964.53

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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.