Home / 260,743.25-391,114.88-142,350.01

Finding the Fourth Proportional to 260,743.25, 391,114.88 and 142,350.01

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Solution

The fourth proportional to 260,743.25, 391,114.88 and 142,350.01 is: 213,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,743.25 : 391,114.88 = 142,350.01 : x
  2. Step 2: Convert to fraction form
    260,743.25/391,114.88 = 142,350.01/x
  3. Step 3: Cross multiply
    260,743.25x = 391,114.88 × 142,350.01
  4. Step 4: Simplify right side
    260,743.25x = 55,675,205,923.42
  5. Step 5: Solve for x
    x = 55,675,205,923.42/260,743.25
  6. Step 6: Final answer
    x = 213,525.01

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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.