Home / 268,565.17-402,847.85-68,885.54

Finding the Fourth Proportional to 268,565.17, 402,847.85 and 68,885.54

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Solution

The fourth proportional to 268,565.17, 402,847.85 and 68,885.54 is: 103,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,565.17 : 402,847.85 = 68,885.54 : x
  2. Step 2: Convert to fraction form
    268,565.17/402,847.85 = 68,885.54/x
  3. Step 3: Cross multiply
    268,565.17x = 402,847.85 × 68,885.54
  4. Step 4: Simplify right side
    268,565.17x = 27,750,389,326.42
  5. Step 5: Solve for x
    x = 27,750,389,326.42/268,565.17
  6. Step 6: Final answer
    x = 103,328.33

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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.