Home / 318,500.26-477,824.20-108,138.20

Finding the Fourth Proportional to 318,500.26, 477,824.20 and 108,138.20

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Solution

The fourth proportional to 318,500.26, 477,824.20 and 108,138.20 is: 162,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,500.26 : 477,824.20 = 108,138.20 : x
  2. Step 2: Convert to fraction form
    318,500.26/477,824.20 = 108,138.20/x
  3. Step 3: Cross multiply
    318,500.26x = 477,824.20 × 108,138.20
  4. Step 4: Simplify right side
    318,500.26x = 51,671,048,904.44
  5. Step 5: Solve for x
    x = 51,671,048,904.44/318,500.26
  6. Step 6: Final answer
    x = 162,232.36

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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.