Home / 240,815.66-361,238.88-80,885.12

Finding the Fourth Proportional to 240,815.66, 361,238.88 and 80,885.12

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Solution

The fourth proportional to 240,815.66, 361,238.88 and 80,885.12 is: 121,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,815.66 : 361,238.88 = 80,885.12 : x
  2. Step 2: Convert to fraction form
    240,815.66/361,238.88 = 80,885.12/x
  3. Step 3: Cross multiply
    240,815.66x = 361,238.88 × 80,885.12
  4. Step 4: Simplify right side
    240,815.66x = 29,218,850,157.47
  5. Step 5: Solve for x
    x = 29,218,850,157.47/240,815.66
  6. Step 6: Final answer
    x = 121,332.85

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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.