Home / 439,759.89-659,747.30-140,240.52

Finding the Fourth Proportional to 439,759.89, 659,747.30 and 140,240.52

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Solution

The fourth proportional to 439,759.89, 659,747.30 and 140,240.52 is: 210,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,759.89 : 659,747.30 = 140,240.52 : x
  2. Step 2: Convert to fraction form
    439,759.89/659,747.30 = 140,240.52/x
  3. Step 3: Cross multiply
    439,759.89x = 659,747.30 × 140,240.52
  4. Step 4: Simplify right side
    439,759.89x = 92,523,303,719.39
  5. Step 5: Solve for x
    x = 92,523,303,719.39/439,759.89
  6. Step 6: Final answer
    x = 210,395.05

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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.