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Finding the Fourth Proportional to 418,476.30, 577,490.48 and 227,494.50

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Solution

The fourth proportional to 418,476.30, 577,490.48 and 227,494.50 is: 313,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,476.30 : 577,490.48 = 227,494.50 : x
  2. Step 2: Convert to fraction form
    418,476.30/577,490.48 = 227,494.50/x
  3. Step 3: Cross multiply
    418,476.30x = 577,490.48 × 227,494.50
  4. Step 4: Simplify right side
    418,476.30x = 131,375,908,002.36
  5. Step 5: Solve for x
    x = 131,375,908,002.36/418,476.30
  6. Step 6: Final answer
    x = 313,938.71

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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.