Home / 231,419.16-319,267.14-145,327.50

Finding the Fourth Proportional to 231,419.16, 319,267.14 and 145,327.50

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Solution

The fourth proportional to 231,419.16, 319,267.14 and 145,327.50 is: 200,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,419.16 : 319,267.14 = 145,327.50 : x
  2. Step 2: Convert to fraction form
    231,419.16/319,267.14 = 145,327.50/x
  3. Step 3: Cross multiply
    231,419.16x = 319,267.14 × 145,327.50
  4. Step 4: Simplify right side
    231,419.16x = 46,398,295,288.35
  5. Step 5: Solve for x
    x = 46,398,295,288.35/231,419.16
  6. Step 6: Final answer
    x = 200,494.61

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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.