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Finding the Fourth Proportional to 355,654.20, 532,703.70 and 276,144.60

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Solution

The fourth proportional to 355,654.20, 532,703.70 and 276,144.60 is: 413,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,654.20 : 532,703.70 = 276,144.60 : x
  2. Step 2: Convert to fraction form
    355,654.20/532,703.70 = 276,144.60/x
  3. Step 3: Cross multiply
    355,654.20x = 532,703.70 × 276,144.60
  4. Step 4: Simplify right side
    355,654.20x = 147,103,250,155.02
  5. Step 5: Solve for x
    x = 147,103,250,155.02/355,654.20
  6. Step 6: Final answer
    x = 413,613.14

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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.