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Finding the Fourth Proportional to 239,294.62, 330,225.16 and 130,398.76

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Solution

The fourth proportional to 239,294.62, 330,225.16 and 130,398.76 is: 179,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,294.62 : 330,225.16 = 130,398.76 : x
  2. Step 2: Convert to fraction form
    239,294.62/330,225.16 = 130,398.76/x
  3. Step 3: Cross multiply
    239,294.62x = 330,225.16 × 130,398.76
  4. Step 4: Simplify right side
    239,294.62x = 43,060,951,384.80
  5. Step 5: Solve for x
    x = 43,060,951,384.80/239,294.62
  6. Step 6: Final answer
    x = 179,949.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.