Home / 264,399.13-396,514.45-86,864.95

Finding the Fourth Proportional to 264,399.13, 396,514.45 and 86,864.95

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Solution

The fourth proportional to 264,399.13, 396,514.45 and 86,864.95 is: 130,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,399.13 : 396,514.45 = 86,864.95 : x
  2. Step 2: Convert to fraction form
    264,399.13/396,514.45 = 86,864.95/x
  3. Step 3: Cross multiply
    264,399.13x = 396,514.45 × 86,864.95
  4. Step 4: Simplify right side
    264,399.13x = 34,443,207,873.53
  5. Step 5: Solve for x
    x = 34,443,207,873.53/264,399.13
  6. Step 6: Final answer
    x = 130,269.75

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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.