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Finding the Fourth Proportional to 239,293.62, 330,223.78 and 130,397.76

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Solution

The fourth proportional to 239,293.62, 330,223.78 and 130,397.76 is: 179,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,293.62 : 330,223.78 = 130,397.76 : x
  2. Step 2: Convert to fraction form
    239,293.62/330,223.78 = 130,397.76/x
  3. Step 3: Cross multiply
    239,293.62x = 330,223.78 × 130,397.76
  4. Step 4: Simplify right side
    239,293.62x = 43,060,441,210.73
  5. Step 5: Solve for x
    x = 43,060,441,210.73/239,293.62
  6. Step 6: Final answer
    x = 179,948.14

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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.