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Finding the Fourth Proportional to 397,613.60, 548,712.17 and 216,327.69

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Solution

The fourth proportional to 397,613.60, 548,712.17 and 216,327.69 is: 298,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,613.60 : 548,712.17 = 216,327.69 : x
  2. Step 2: Convert to fraction form
    397,613.60/548,712.17 = 216,327.69/x
  3. Step 3: Cross multiply
    397,613.60x = 548,712.17 × 216,327.69
  4. Step 4: Simplify right side
    397,613.60x = 118,701,635,129.35
  5. Step 5: Solve for x
    x = 118,701,635,129.35/397,613.60
  6. Step 6: Final answer
    x = 298,535.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.