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Finding the Fourth Proportional to 275,550.66, 413,341.38 and 86,037.20

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Solution

The fourth proportional to 275,550.66, 413,341.38 and 86,037.20 is: 129,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,550.66 : 413,341.38 = 86,037.20 : x
  2. Step 2: Convert to fraction form
    275,550.66/413,341.38 = 86,037.20/x
  3. Step 3: Cross multiply
    275,550.66x = 413,341.38 × 86,037.20
  4. Step 4: Simplify right side
    275,550.66x = 35,562,734,979.34
  5. Step 5: Solve for x
    x = 35,562,734,979.34/275,550.66
  6. Step 6: Final answer
    x = 129,060.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.