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Finding the Fourth Proportional to 418,381.61, 577,372.46 and 227,394.95

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Solution

The fourth proportional to 418,381.61, 577,372.46 and 227,394.95 is: 313,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,381.61 : 577,372.46 = 227,394.95 : x
  2. Step 2: Convert to fraction form
    418,381.61/577,372.46 = 227,394.95/x
  3. Step 3: Cross multiply
    418,381.61x = 577,372.46 × 227,394.95
  4. Step 4: Simplify right side
    418,381.61x = 131,291,577,649.24
  5. Step 5: Solve for x
    x = 131,291,577,649.24/418,381.61
  6. Step 6: Final answer
    x = 313,808.20

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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.