Home / 260,034.20-390,051.30-231,003.80

Finding the Fourth Proportional to 260,034.20, 390,051.30 and 231,003.80

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Solution

The fourth proportional to 260,034.20, 390,051.30 and 231,003.80 is: 346,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,034.20 : 390,051.30 = 231,003.80 : x
  2. Step 2: Convert to fraction form
    260,034.20/390,051.30 = 231,003.80/x
  3. Step 3: Cross multiply
    260,034.20x = 390,051.30 × 231,003.80
  4. Step 4: Simplify right side
    260,034.20x = 90,103,332,494.94
  5. Step 5: Solve for x
    x = 90,103,332,494.94/260,034.20
  6. Step 6: Final answer
    x = 346,505.70

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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.