Home / 231,788.34-319,856.85-142,347.06

Finding the Fourth Proportional to 231,788.34, 319,856.85 and 142,347.06

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Solution

The fourth proportional to 231,788.34, 319,856.85 and 142,347.06 is: 196,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,788.34 : 319,856.85 = 142,347.06 : x
  2. Step 2: Convert to fraction form
    231,788.34/319,856.85 = 142,347.06/x
  3. Step 3: Cross multiply
    231,788.34x = 319,856.85 × 142,347.06
  4. Step 4: Simplify right side
    231,788.34x = 45,530,682,218.36
  5. Step 5: Solve for x
    x = 45,530,682,218.36/231,788.34
  6. Step 6: Final answer
    x = 196,432.15

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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.