Home / 261,315.20-391,972.80-93,025.55

Finding the Fourth Proportional to 261,315.20, 391,972.80 and 93,025.55

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Solution

The fourth proportional to 261,315.20, 391,972.80 and 93,025.55 is: 139,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,315.20 : 391,972.80 = 93,025.55 : x
  2. Step 2: Convert to fraction form
    261,315.20/391,972.80 = 93,025.55/x
  3. Step 3: Cross multiply
    261,315.20x = 391,972.80 × 93,025.55
  4. Step 4: Simplify right side
    261,315.20x = 36,463,485,305.04
  5. Step 5: Solve for x
    x = 36,463,485,305.04/261,315.20
  6. Step 6: Final answer
    x = 139,538.33

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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.