Home / 288,839.76-398,617.24-161,515.36

Finding the Fourth Proportional to 288,839.76, 398,617.24 and 161,515.36

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Solution

The fourth proportional to 288,839.76, 398,617.24 and 161,515.36 is: 222,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,839.76 : 398,617.24 = 161,515.36 : x
  2. Step 2: Convert to fraction form
    288,839.76/398,617.24 = 161,515.36/x
  3. Step 3: Cross multiply
    288,839.76x = 398,617.24 × 161,515.36
  4. Step 4: Simplify right side
    288,839.76x = 64,382,807,020.81
  5. Step 5: Solve for x
    x = 64,382,807,020.81/288,839.76
  6. Step 6: Final answer
    x = 222,901.47

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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.