Home / 268,479.27-402,467.40-90,861.93

Finding the Fourth Proportional to 268,479.27, 402,467.40 and 90,861.93

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Solution

The fourth proportional to 268,479.27, 402,467.40 and 90,861.93 is: 136,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,479.27 : 402,467.40 = 90,861.93 : x
  2. Step 2: Convert to fraction form
    268,479.27/402,467.40 = 90,861.93/x
  3. Step 3: Cross multiply
    268,479.27x = 402,467.40 × 90,861.93
  4. Step 4: Simplify right side
    268,479.27x = 36,568,964,726.08
  5. Step 5: Solve for x
    x = 36,568,964,726.08/268,479.27
  6. Step 6: Final answer
    x = 136,207.78

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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.