Home / 230,899.20-318,645.12-130,277.76

Finding the Fourth Proportional to 230,899.20, 318,645.12 and 130,277.76

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Solution

The fourth proportional to 230,899.20, 318,645.12 and 130,277.76 is: 179,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,899.20 : 318,645.12 = 130,277.76 : x
  2. Step 2: Convert to fraction form
    230,899.20/318,645.12 = 130,277.76/x
  3. Step 3: Cross multiply
    230,899.20x = 318,645.12 × 130,277.76
  4. Step 4: Simplify right side
    230,899.20x = 41,512,372,468.53
  5. Step 5: Solve for x
    x = 41,512,372,468.53/230,899.20
  6. Step 6: Final answer
    x = 179,785.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.