Home / 258,729.76-357,045.60-145,553.44

Finding the Fourth Proportional to 258,729.76, 357,045.60 and 145,553.44

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Solution

The fourth proportional to 258,729.76, 357,045.60 and 145,553.44 is: 200,862.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,729.76 : 357,045.60 = 145,553.44 : x
  2. Step 2: Convert to fraction form
    258,729.76/357,045.60 = 145,553.44/x
  3. Step 3: Cross multiply
    258,729.76x = 357,045.60 × 145,553.44
  4. Step 4: Simplify right side
    258,729.76x = 51,969,215,316.86
  5. Step 5: Solve for x
    x = 51,969,215,316.86/258,729.76
  6. Step 6: Final answer
    x = 200,862.92

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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.