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Finding the Fourth Proportional to 132,384.60, 198,557.70 and 38,880.60

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Solution

The fourth proportional to 132,384.60, 198,557.70 and 38,880.60 is: 58,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,384.60 : 198,557.70 = 38,880.60 : x
  2. Step 2: Convert to fraction form
    132,384.60/198,557.70 = 38,880.60/x
  3. Step 3: Cross multiply
    132,384.60x = 198,557.70 × 38,880.60
  4. Step 4: Simplify right side
    132,384.60x = 7,720,042,510.62
  5. Step 5: Solve for x
    x = 7,720,042,510.62/132,384.60
  6. Step 6: Final answer
    x = 58,315.26

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1.5x scale

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.