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Finding the Fourth Proportional to 355,230.80, 532,392.60 and 144,630.80

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Solution

The fourth proportional to 355,230.80, 532,392.60 and 144,630.80 is: 216,761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,230.80 : 532,392.60 = 144,630.80 : x
  2. Step 2: Convert to fraction form
    355,230.80/532,392.60 = 144,630.80/x
  3. Step 3: Cross multiply
    355,230.80x = 532,392.60 × 144,630.80
  4. Step 4: Simplify right side
    355,230.80x = 77,000,367,652.08
  5. Step 5: Solve for x
    x = 77,000,367,652.08/355,230.80
  6. Step 6: Final answer
    x = 216,761.52

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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.