Home / 318,498.20-477,821.10-108,136.13

Finding the Fourth Proportional to 318,498.20, 477,821.10 and 108,136.13

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Solution

The fourth proportional to 318,498.20, 477,821.10 and 108,136.13 is: 162,229.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,498.20 : 477,821.10 = 108,136.13 : x
  2. Step 2: Convert to fraction form
    318,498.20/477,821.10 = 108,136.13/x
  3. Step 3: Cross multiply
    318,498.20x = 477,821.10 × 108,136.13
  4. Step 4: Simplify right side
    318,498.20x = 51,669,722,197.24
  5. Step 5: Solve for x
    x = 51,669,722,197.24/318,498.20
  6. Step 6: Final answer
    x = 162,229.25

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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.