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Finding the Fourth Proportional to 354,720.48, 532,079.20 and 88,480.64

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Solution

The fourth proportional to 354,720.48, 532,079.20 and 88,480.64 is: 132,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,720.48 : 532,079.20 = 88,480.64 : x
  2. Step 2: Convert to fraction form
    354,720.48/532,079.20 = 88,480.64/x
  3. Step 3: Cross multiply
    354,720.48x = 532,079.20 × 88,480.64
  4. Step 4: Simplify right side
    354,720.48x = 47,078,708,146.69
  5. Step 5: Solve for x
    x = 47,078,708,146.69/354,720.48
  6. Step 6: Final answer
    x = 132,720.58

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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.