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Finding the Fourth Proportional to 324,002.80, 485,773.60 and 124,154.20

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Solution

The fourth proportional to 324,002.80, 485,773.60 and 124,154.20 is: 186,142.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,002.80 : 485,773.60 = 124,154.20 : x
  2. Step 2: Convert to fraction form
    324,002.80/485,773.60 = 124,154.20/x
  3. Step 3: Cross multiply
    324,002.80x = 485,773.60 × 124,154.20
  4. Step 4: Simplify right side
    324,002.80x = 60,310,832,689.12
  5. Step 5: Solve for x
    x = 60,310,832,689.12/324,002.80
  6. Step 6: Final answer
    x = 186,142.94

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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.