Home / 290,531.28-400,889.52-163,182.48

Finding the Fourth Proportional to 290,531.28, 400,889.52 and 163,182.48

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Solution

The fourth proportional to 290,531.28, 400,889.52 and 163,182.48 is: 225,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,531.28 : 400,889.52 = 163,182.48 : x
  2. Step 2: Convert to fraction form
    290,531.28/400,889.52 = 163,182.48/x
  3. Step 3: Cross multiply
    290,531.28x = 400,889.52 × 163,182.48
  4. Step 4: Simplify right side
    290,531.28x = 65,418,146,079.61
  5. Step 5: Solve for x
    x = 65,418,146,079.61/290,531.28
  6. Step 6: Final answer
    x = 225,167.31

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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.