Home / 260,531.10-390,833.10-110,770.20

Finding the Fourth Proportional to 260,531.10, 390,833.10 and 110,770.20

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Solution

The fourth proportional to 260,531.10, 390,833.10 and 110,770.20 is: 166,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,531.10 : 390,833.10 = 110,770.20 : x
  2. Step 2: Convert to fraction form
    260,531.10/390,833.10 = 110,770.20/x
  3. Step 3: Cross multiply
    260,531.10x = 390,833.10 × 110,770.20
  4. Step 4: Simplify right side
    260,531.10x = 43,292,660,653.62
  5. Step 5: Solve for x
    x = 43,292,660,653.62/260,531.10
  6. Step 6: Final answer
    x = 166,170.80

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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.