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Finding the Fourth Proportional to 375,552.80, 518,251.96 and 220,501.48

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Solution

The fourth proportional to 375,552.80, 518,251.96 and 220,501.48 is: 304,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,552.80 : 518,251.96 = 220,501.48 : x
  2. Step 2: Convert to fraction form
    375,552.80/518,251.96 = 220,501.48/x
  3. Step 3: Cross multiply
    375,552.80x = 518,251.96 × 220,501.48
  4. Step 4: Simplify right side
    375,552.80x = 114,275,324,192.90
  5. Step 5: Solve for x
    x = 114,275,324,192.90/375,552.80
  6. Step 6: Final answer
    x = 304,285.64

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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.