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Finding the Fourth Proportional to 418,227.32, 577,155.84 and 227,241.20

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Solution

The fourth proportional to 418,227.32, 577,155.84 and 227,241.20 is: 313,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,227.32 : 577,155.84 = 227,241.20 : x
  2. Step 2: Convert to fraction form
    418,227.32/577,155.84 = 227,241.20/x
  3. Step 3: Cross multiply
    418,227.32x = 577,155.84 × 227,241.20
  4. Step 4: Simplify right side
    418,227.32x = 131,153,585,668.61
  5. Step 5: Solve for x
    x = 131,153,585,668.61/418,227.32
  6. Step 6: Final answer
    x = 313,594.02

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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.