Home / 288,716.20-398,437.18-161,397.16

Finding the Fourth Proportional to 288,716.20, 398,437.18 and 161,397.16

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Solution

The fourth proportional to 288,716.20, 398,437.18 and 161,397.16 is: 222,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,716.20 : 398,437.18 = 161,397.16 : x
  2. Step 2: Convert to fraction form
    288,716.20/398,437.18 = 161,397.16/x
  3. Step 3: Cross multiply
    288,716.20x = 398,437.18 × 161,397.16
  4. Step 4: Simplify right side
    288,716.20x = 64,306,629,290.41
  5. Step 5: Solve for x
    x = 64,306,629,290.41/288,716.20
  6. Step 6: Final answer
    x = 222,733.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.