Home / 258,833.02-388,247.28-71,844.52

Finding the Fourth Proportional to 258,833.02, 388,247.28 and 71,844.52

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Solution

The fourth proportional to 258,833.02, 388,247.28 and 71,844.52 is: 107,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,833.02 : 388,247.28 = 71,844.52 : x
  2. Step 2: Convert to fraction form
    258,833.02/388,247.28 = 71,844.52/x
  3. Step 3: Cross multiply
    258,833.02x = 388,247.28 × 71,844.52
  4. Step 4: Simplify right side
    258,833.02x = 27,893,439,472.91
  5. Step 5: Solve for x
    x = 27,893,439,472.91/258,833.02
  6. Step 6: Final answer
    x = 107,766.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.