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Finding the Fourth Proportional to 543,242.20, 814,940.10 and 169,226.20

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Solution

The fourth proportional to 543,242.20, 814,940.10 and 169,226.20 is: 253,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,242.20 : 814,940.10 = 169,226.20 : x
  2. Step 2: Convert to fraction form
    543,242.20/814,940.10 = 169,226.20/x
  3. Step 3: Cross multiply
    543,242.20x = 814,940.10 × 169,226.20
  4. Step 4: Simplify right side
    543,242.20x = 137,909,216,350.62
  5. Step 5: Solve for x
    x = 137,909,216,350.62/543,242.20
  6. Step 6: Final answer
    x = 253,863.22

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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.