Home / 329,319.60-493,979.40-80,001.60

Finding the Fourth Proportional to 329,319.60, 493,979.40 and 80,001.60

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Solution

The fourth proportional to 329,319.60, 493,979.40 and 80,001.60 is: 120,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,319.60 : 493,979.40 = 80,001.60 : x
  2. Step 2: Convert to fraction form
    329,319.60/493,979.40 = 80,001.60/x
  3. Step 3: Cross multiply
    329,319.60x = 493,979.40 × 80,001.60
  4. Step 4: Simplify right side
    329,319.60x = 39,519,142,367.04
  5. Step 5: Solve for x
    x = 39,519,142,367.04/329,319.60
  6. Step 6: Final answer
    x = 120,002.40

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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.