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Finding the Fourth Proportional to 275,417.20, 413,125.80 and 265,794.40

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Solution

The fourth proportional to 275,417.20, 413,125.80 and 265,794.40 is: 398,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,417.20 : 413,125.80 = 265,794.40 : x
  2. Step 2: Convert to fraction form
    275,417.20/413,125.80 = 265,794.40/x
  3. Step 3: Cross multiply
    275,417.20x = 413,125.80 × 265,794.40
  4. Step 4: Simplify right side
    275,417.20x = 109,806,524,135.52
  5. Step 5: Solve for x
    x = 109,806,524,135.52/275,417.20
  6. Step 6: Final answer
    x = 398,691.60

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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.