Home / 261,241.20-391,628.52-103,361.67

Finding the Fourth Proportional to 261,241.20, 391,628.52 and 103,361.67

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Solution

The fourth proportional to 261,241.20, 391,628.52 and 103,361.67 is: 154,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,241.20 : 391,628.52 = 103,361.67 : x
  2. Step 2: Convert to fraction form
    261,241.20/391,628.52 = 103,361.67/x
  3. Step 3: Cross multiply
    261,241.20x = 391,628.52 × 103,361.67
  4. Step 4: Simplify right side
    261,241.20x = 40,479,377,846.83
  5. Step 5: Solve for x
    x = 40,479,377,846.83/261,241.20
  6. Step 6: Final answer
    x = 154,950.21

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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.