Home / 261,050.18-391,575.62-71,512.23

Finding the Fourth Proportional to 261,050.18, 391,575.62 and 71,512.23

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Solution

The fourth proportional to 261,050.18, 391,575.62 and 71,512.23 is: 107,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,050.18 : 391,575.62 = 71,512.23 : x
  2. Step 2: Convert to fraction form
    261,050.18/391,575.62 = 71,512.23/x
  3. Step 3: Cross multiply
    261,050.18x = 391,575.62 × 71,512.23
  4. Step 4: Simplify right side
    261,050.18x = 28,002,446,910.68
  5. Step 5: Solve for x
    x = 28,002,446,910.68/261,050.18
  6. Step 6: Final answer
    x = 107,268.44

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1.5x scale

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.