Home / 329,320.16-493,980.24-80,000.48

Finding the Fourth Proportional to 329,320.16, 493,980.24 and 80,000.48

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Solution

The fourth proportional to 329,320.16, 493,980.24 and 80,000.48 is: 120,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,320.16 : 493,980.24 = 80,000.48 : x
  2. Step 2: Convert to fraction form
    329,320.16/493,980.24 = 80,000.48/x
  3. Step 3: Cross multiply
    329,320.16x = 493,980.24 × 80,000.48
  4. Step 4: Simplify right side
    329,320.16x = 39,518,656,310.52
  5. Step 5: Solve for x
    x = 39,518,656,310.52/329,320.16
  6. Step 6: Final answer
    x = 120,000.72

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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.