Home / 230,419.26-317,982.06-128,441.88

Finding the Fourth Proportional to 230,419.26, 317,982.06 and 128,441.88

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Solution

The fourth proportional to 230,419.26, 317,982.06 and 128,441.88 is: 177,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,419.26 : 317,982.06 = 128,441.88 : x
  2. Step 2: Convert to fraction form
    230,419.26/317,982.06 = 128,441.88/x
  3. Step 3: Cross multiply
    230,419.26x = 317,982.06 × 128,441.88
  4. Step 4: Simplify right side
    230,419.26x = 40,842,213,592.67
  5. Step 5: Solve for x
    x = 40,842,213,592.67/230,419.26
  6. Step 6: Final answer
    x = 177,251.73

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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.