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Finding the Fourth Proportional to 275,986.60, 413,979.90 and 181,508.20

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Solution

The fourth proportional to 275,986.60, 413,979.90 and 181,508.20 is: 272,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,986.60 : 413,979.90 = 181,508.20 : x
  2. Step 2: Convert to fraction form
    275,986.60/413,979.90 = 181,508.20/x
  3. Step 3: Cross multiply
    275,986.60x = 413,979.90 × 181,508.20
  4. Step 4: Simplify right side
    275,986.60x = 75,140,746,485.18
  5. Step 5: Solve for x
    x = 75,140,746,485.18/275,986.60
  6. Step 6: Final answer
    x = 272,262.30

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1.5x scale

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.