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Finding the Fourth Proportional to 401,930.07, 554,649.12 and 227,496.54

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Solution

The fourth proportional to 401,930.07, 554,649.12 and 227,496.54 is: 313,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,930.07 : 554,649.12 = 227,496.54 : x
  2. Step 2: Convert to fraction form
    401,930.07/554,649.12 = 227,496.54/x
  3. Step 3: Cross multiply
    401,930.07x = 554,649.12 × 227,496.54
  4. Step 4: Simplify right side
    401,930.07x = 126,180,755,714.05
  5. Step 5: Solve for x
    x = 126,180,755,714.05/401,930.07
  6. Step 6: Final answer
    x = 313,937.09

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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.