Home / 318,120.50-477,168.30-107,758.44

Finding the Fourth Proportional to 318,120.50, 477,168.30 and 107,758.44

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Solution

The fourth proportional to 318,120.50, 477,168.30 and 107,758.44 is: 161,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,120.50 : 477,168.30 = 107,758.44 : x
  2. Step 2: Convert to fraction form
    318,120.50/477,168.30 = 107,758.44/x
  3. Step 3: Cross multiply
    318,120.50x = 477,168.30 × 107,758.44
  4. Step 4: Simplify right side
    318,120.50x = 51,418,911,625.45
  5. Step 5: Solve for x
    x = 51,418,911,625.45/318,120.50
  6. Step 6: Final answer
    x = 161,633.44

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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.