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Finding the Fourth Proportional to 418,227.12, 577,145.12 and 227,241.88

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Solution

The fourth proportional to 418,227.12, 577,145.12 and 227,241.88 is: 313,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,227.12 : 577,145.12 = 227,241.88 : x
  2. Step 2: Convert to fraction form
    418,227.12/577,145.12 = 227,241.88/x
  3. Step 3: Cross multiply
    418,227.12x = 577,145.12 × 227,241.88
  4. Step 4: Simplify right side
    418,227.12x = 131,151,539,522.55
  5. Step 5: Solve for x
    x = 131,151,539,522.55/418,227.12
  6. Step 6: Final answer
    x = 313,589.28

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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.