Home / 329,747.24-494,288.55-129,990.30

Finding the Fourth Proportional to 329,747.24, 494,288.55 and 129,990.30

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Solution

The fourth proportional to 329,747.24, 494,288.55 and 129,990.30 is: 194,854.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,747.24 : 494,288.55 = 129,990.30 : x
  2. Step 2: Convert to fraction form
    329,747.24/494,288.55 = 129,990.30/x
  3. Step 3: Cross multiply
    329,747.24x = 494,288.55 × 129,990.30
  4. Step 4: Simplify right side
    329,747.24x = 64,252,716,901.07
  5. Step 5: Solve for x
    x = 64,252,716,901.07/329,747.24
  6. Step 6: Final answer
    x = 194,854.45

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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.