Home / 260,817.15-391,243.95-103,025.10

Finding the Fourth Proportional to 260,817.15, 391,243.95 and 103,025.10

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Solution

The fourth proportional to 260,817.15, 391,243.95 and 103,025.10 is: 154,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,817.15 : 391,243.95 = 103,025.10 : x
  2. Step 2: Convert to fraction form
    260,817.15/391,243.95 = 103,025.10/x
  3. Step 3: Cross multiply
    260,817.15x = 391,243.95 × 103,025.10
  4. Step 4: Simplify right side
    260,817.15x = 40,307,947,073.15
  5. Step 5: Solve for x
    x = 40,307,947,073.15/260,817.15
  6. Step 6: Final answer
    x = 154,544.85

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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.