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Finding the Fourth Proportional to 239,612.80, 330,661.56 and 132,193.12

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Solution

The fourth proportional to 239,612.80, 330,661.56 and 132,193.12 is: 182,424.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,612.80 : 330,661.56 = 132,193.12 : x
  2. Step 2: Convert to fraction form
    239,612.80/330,661.56 = 132,193.12/x
  3. Step 3: Cross multiply
    239,612.80x = 330,661.56 × 132,193.12
  4. Step 4: Simplify right side
    239,612.80x = 43,711,183,280.47
  5. Step 5: Solve for x
    x = 43,711,183,280.47/239,612.80
  6. Step 6: Final answer
    x = 182,424.24

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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.