Home / 329,158.12-493,860.20-129,617.60

Finding the Fourth Proportional to 329,158.12, 493,860.20 and 129,617.60

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Solution

The fourth proportional to 329,158.12, 493,860.20 and 129,617.60 is: 194,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,158.12 : 493,860.20 = 129,617.60 : x
  2. Step 2: Convert to fraction form
    329,158.12/493,860.20 = 129,617.60/x
  3. Step 3: Cross multiply
    329,158.12x = 493,860.20 × 129,617.60
  4. Step 4: Simplify right side
    329,158.12x = 64,012,975,694.71
  5. Step 5: Solve for x
    x = 64,012,975,694.71/329,158.12
  6. Step 6: Final answer
    x = 194,474.85

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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.