Home / 327,125.60-490,688.40-215,151.20

Finding the Fourth Proportional to 327,125.60, 490,688.40 and 215,151.20

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Solution

The fourth proportional to 327,125.60, 490,688.40 and 215,151.20 is: 322,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,125.60 : 490,688.40 = 215,151.20 : x
  2. Step 2: Convert to fraction form
    327,125.60/490,688.40 = 215,151.20/x
  3. Step 3: Cross multiply
    327,125.60x = 490,688.40 × 215,151.20
  4. Step 4: Simplify right side
    327,125.60x = 105,572,198,086.08
  5. Step 5: Solve for x
    x = 105,572,198,086.08/327,125.60
  6. Step 6: Final answer
    x = 322,726.80

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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.