Home / 268,286.55-402,284.03-90,702.15

Finding the Fourth Proportional to 268,286.55, 402,284.03 and 90,702.15

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Solution

The fourth proportional to 268,286.55, 402,284.03 and 90,702.15 is: 136,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,286.55 : 402,284.03 = 90,702.15 : x
  2. Step 2: Convert to fraction form
    268,286.55/402,284.03 = 90,702.15/x
  3. Step 3: Cross multiply
    268,286.55x = 402,284.03 × 90,702.15
  4. Step 4: Simplify right side
    268,286.55x = 36,488,025,978.15
  5. Step 5: Solve for x
    x = 36,488,025,978.15/268,286.55
  6. Step 6: Final answer
    x = 136,003.93

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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.