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Finding the Fourth Proportional to 418,625.23, 577,696.22 and 227,636.95

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Solution

The fourth proportional to 418,625.23, 577,696.22 and 227,636.95 is: 314,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,625.23 : 577,696.22 = 227,636.95 : x
  2. Step 2: Convert to fraction form
    418,625.23/577,696.22 = 227,636.95/x
  3. Step 3: Cross multiply
    418,625.23x = 577,696.22 × 227,636.95
  4. Step 4: Simplify right side
    418,625.23x = 131,505,002,658.85
  5. Step 5: Solve for x
    x = 131,505,002,658.85/418,625.23
  6. Step 6: Final answer
    x = 314,135.40

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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.