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Finding the Fourth Proportional to 132,327.60, 198,491.40 and 115,220.40

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Solution

The fourth proportional to 132,327.60, 198,491.40 and 115,220.40 is: 172,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,327.60 : 198,491.40 = 115,220.40 : x
  2. Step 2: Convert to fraction form
    132,327.60/198,491.40 = 115,220.40/x
  3. Step 3: Cross multiply
    132,327.60x = 198,491.40 × 115,220.40
  4. Step 4: Simplify right side
    132,327.60x = 22,870,258,504.56
  5. Step 5: Solve for x
    x = 22,870,258,504.56/132,327.60
  6. Step 6: Final answer
    x = 172,830.60

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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.