Home / 231,351.52-319,312.56-135,908.32

Finding the Fourth Proportional to 231,351.52, 319,312.56 and 135,908.32

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Solution

The fourth proportional to 231,351.52, 319,312.56 and 135,908.32 is: 187,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,351.52 : 319,312.56 = 135,908.32 : x
  2. Step 2: Convert to fraction form
    231,351.52/319,312.56 = 135,908.32/x
  3. Step 3: Cross multiply
    231,351.52x = 319,312.56 × 135,908.32
  4. Step 4: Simplify right side
    231,351.52x = 43,397,233,584.50
  5. Step 5: Solve for x
    x = 43,397,233,584.50/231,351.52
  6. Step 6: Final answer
    x = 187,581.36

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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.