Home / 329,319.38-493,980.29-80,001.38

Finding the Fourth Proportional to 329,319.38, 493,980.29 and 80,001.38

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Solution

The fourth proportional to 329,319.38, 493,980.29 and 80,001.38 is: 120,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,319.38 : 493,980.29 = 80,001.38 : x
  2. Step 2: Convert to fraction form
    329,319.38/493,980.29 = 80,001.38/x
  3. Step 3: Cross multiply
    329,319.38x = 493,980.29 × 80,001.38
  4. Step 4: Simplify right side
    329,319.38x = 39,519,102,022.89
  5. Step 5: Solve for x
    x = 39,519,102,022.89/329,319.38
  6. Step 6: Final answer
    x = 120,002.36

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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.