Home / 399,830.20-551,764.88-227,748.10

Finding the Fourth Proportional to 399,830.20, 551,764.88 and 227,748.10

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Solution

The fourth proportional to 399,830.20, 551,764.88 and 227,748.10 is: 314,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,830.20 : 551,764.88 = 227,748.10 : x
  2. Step 2: Convert to fraction form
    399,830.20/551,764.88 = 227,748.10/x
  3. Step 3: Cross multiply
    399,830.20x = 551,764.88 × 227,748.10
  4. Step 4: Simplify right side
    399,830.20x = 125,663,403,066.73
  5. Step 5: Solve for x
    x = 125,663,403,066.73/399,830.20
  6. Step 6: Final answer
    x = 314,291.92

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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.