Home / 231,739.54-319,626.48-155,344.80

Finding the Fourth Proportional to 231,739.54, 319,626.48 and 155,344.80

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Solution

The fourth proportional to 231,739.54, 319,626.48 and 155,344.80 is: 214,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,739.54 : 319,626.48 = 155,344.80 : x
  2. Step 2: Convert to fraction form
    231,739.54/319,626.48 = 155,344.80/x
  3. Step 3: Cross multiply
    231,739.54x = 319,626.48 × 155,344.80
  4. Step 4: Simplify right side
    231,739.54x = 49,652,311,610.30
  5. Step 5: Solve for x
    x = 49,652,311,610.30/231,739.54
  6. Step 6: Final answer
    x = 214,259.13

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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.