Home / 207,613.45-311,420.38-57,854.17

Finding the Fourth Proportional to 207,613.45, 311,420.38 and 57,854.17

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Solution

The fourth proportional to 207,613.45, 311,420.38 and 57,854.17 is: 86,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,613.45 : 311,420.38 = 57,854.17 : x
  2. Step 2: Convert to fraction form
    207,613.45/311,420.38 = 57,854.17/x
  3. Step 3: Cross multiply
    207,613.45x = 311,420.38 × 57,854.17
  4. Step 4: Simplify right side
    207,613.45x = 18,016,967,605.98
  5. Step 5: Solve for x
    x = 18,016,967,605.98/207,613.45
  6. Step 6: Final answer
    x = 86,781.31

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1.5x scale

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.