Home / 225,819.50-311,630.43-130,326.20

Finding the Fourth Proportional to 225,819.50, 311,630.43 and 130,326.20

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Solution

The fourth proportional to 225,819.50, 311,630.43 and 130,326.20 is: 179,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,819.50 : 311,630.43 = 130,326.20 : x
  2. Step 2: Convert to fraction form
    225,819.50/311,630.43 = 130,326.20/x
  3. Step 3: Cross multiply
    225,819.50x = 311,630.43 × 130,326.20
  4. Step 4: Simplify right side
    225,819.50x = 40,613,609,746.27
  5. Step 5: Solve for x
    x = 40,613,609,746.27/225,819.50
  6. Step 6: Final answer
    x = 179,849.88

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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.