Home / 268,473.52-402,458.77-90,856.18

Finding the Fourth Proportional to 268,473.52, 402,458.77 and 90,856.18

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Solution

The fourth proportional to 268,473.52, 402,458.77 and 90,856.18 is: 136,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,473.52 : 402,458.77 = 90,856.18 : x
  2. Step 2: Convert to fraction form
    268,473.52/402,458.77 = 90,856.18/x
  3. Step 3: Cross multiply
    268,473.52x = 402,458.77 × 90,856.18
  4. Step 4: Simplify right side
    268,473.52x = 36,565,866,449.70
  5. Step 5: Solve for x
    x = 36,565,866,449.70/268,473.52
  6. Step 6: Final answer
    x = 136,199.15

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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.