Home / 288,713.19-398,433.03-161,394.15

Finding the Fourth Proportional to 288,713.19, 398,433.03 and 161,394.15

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Solution

The fourth proportional to 288,713.19, 398,433.03 and 161,394.15 is: 222,728.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,713.19 : 398,433.03 = 161,394.15 : x
  2. Step 2: Convert to fraction form
    288,713.19/398,433.03 = 161,394.15/x
  3. Step 3: Cross multiply
    288,713.19x = 398,433.03 × 161,394.15
  4. Step 4: Simplify right side
    288,713.19x = 64,304,760,208.77
  5. Step 5: Solve for x
    x = 64,304,760,208.77/288,713.19
  6. Step 6: Final answer
    x = 222,728.86

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1.5x scale

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.