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Finding the Fourth Proportional to 375,295.78, 517,887.64 and 220,226.28

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Solution

The fourth proportional to 375,295.78, 517,887.64 and 220,226.28 is: 303,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,295.78 : 517,887.64 = 220,226.28 : x
  2. Step 2: Convert to fraction form
    375,295.78/517,887.64 = 220,226.28/x
  3. Step 3: Cross multiply
    375,295.78x = 517,887.64 × 220,226.28
  4. Step 4: Simplify right side
    375,295.78x = 114,052,466,748.38
  5. Step 5: Solve for x
    x = 114,052,466,748.38/375,295.78
  6. Step 6: Final answer
    x = 303,900.21

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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.