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Finding the Fourth Proportional to 487,152.79, 730,729.54 and 132,166.78

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Solution

The fourth proportional to 487,152.79, 730,729.54 and 132,166.78 is: 198,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,152.79 : 730,729.54 = 132,166.78 : x
  2. Step 2: Convert to fraction form
    487,152.79/730,729.54 = 132,166.78/x
  3. Step 3: Cross multiply
    487,152.79x = 730,729.54 × 132,166.78
  4. Step 4: Simplify right side
    487,152.79x = 96,578,170,352.68
  5. Step 5: Solve for x
    x = 96,578,170,352.68/487,152.79
  6. Step 6: Final answer
    x = 198,250.27

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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.