Home / 261,288.16-391,890.26-71,704.24

Finding the Fourth Proportional to 261,288.16, 391,890.26 and 71,704.24

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Solution

The fourth proportional to 261,288.16, 391,890.26 and 71,704.24 is: 107,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,288.16 : 391,890.26 = 71,704.24 : x
  2. Step 2: Convert to fraction form
    261,288.16/391,890.26 = 71,704.24/x
  3. Step 3: Cross multiply
    261,288.16x = 391,890.26 × 71,704.24
  4. Step 4: Simplify right side
    261,288.16x = 28,100,193,256.70
  5. Step 5: Solve for x
    x = 28,100,193,256.70/261,288.16
  6. Step 6: Final answer
    x = 107,544.84

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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.