Home / 231,319.24-319,185.30-130,680.52

Finding the Fourth Proportional to 231,319.24, 319,185.30 and 130,680.52

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Solution

The fourth proportional to 231,319.24, 319,185.30 and 130,680.52 is: 180,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,319.24 : 319,185.30 = 130,680.52 : x
  2. Step 2: Convert to fraction form
    231,319.24/319,185.30 = 130,680.52/x
  3. Step 3: Cross multiply
    231,319.24x = 319,185.30 × 130,680.52
  4. Step 4: Simplify right side
    231,319.24x = 41,711,300,980.36
  5. Step 5: Solve for x
    x = 41,711,300,980.36/231,319.24
  6. Step 6: Final answer
    x = 180,319.20

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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.