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Finding the Fourth Proportional to 418,480.30, 577,496 and 227,498.50

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Solution

The fourth proportional to 418,480.30, 577,496 and 227,498.50 is: 313,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,480.30 : 577,496 = 227,498.50 : x
  2. Step 2: Convert to fraction form
    418,480.30/577,496 = 227,498.50/x
  3. Step 3: Cross multiply
    418,480.30x = 577,496 × 227,498.50
  4. Step 4: Simplify right side
    418,480.30x = 131,379,473,756
  5. Step 5: Solve for x
    x = 131,379,473,756/418,480.30
  6. Step 6: Final answer
    x = 313,944.23

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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.