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Finding the Fourth Proportional to 375,296.78, 517,889.02 and 220,227.28

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Solution

The fourth proportional to 375,296.78, 517,889.02 and 220,227.28 is: 303,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,296.78 : 517,889.02 = 220,227.28 : x
  2. Step 2: Convert to fraction form
    375,296.78/517,889.02 = 220,227.28/x
  3. Step 3: Cross multiply
    375,296.78x = 517,889.02 × 220,227.28
  4. Step 4: Simplify right side
    375,296.78x = 114,053,290,216.47
  5. Step 5: Solve for x
    x = 114,053,290,216.47/375,296.78
  6. Step 6: Final answer
    x = 303,901.60

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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.