Home / 261,032.20-391,029.90-155,537.80

Finding the Fourth Proportional to 261,032.20, 391,029.90 and 155,537.80

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Solution

The fourth proportional to 261,032.20, 391,029.90 and 155,537.80 is: 232,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,032.20 : 391,029.90 = 155,537.80 : x
  2. Step 2: Convert to fraction form
    261,032.20/391,029.90 = 155,537.80/x
  3. Step 3: Cross multiply
    261,032.20x = 391,029.90 × 155,537.80
  4. Step 4: Simplify right side
    261,032.20x = 60,819,930,380.22
  5. Step 5: Solve for x
    x = 60,819,930,380.22/261,032.20
  6. Step 6: Final answer
    x = 232,997.81

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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.