Home / 259,934.40-389,901.60-110,149.20

Finding the Fourth Proportional to 259,934.40, 389,901.60 and 110,149.20

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Solution

The fourth proportional to 259,934.40, 389,901.60 and 110,149.20 is: 165,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,934.40 : 389,901.60 = 110,149.20 : x
  2. Step 2: Convert to fraction form
    259,934.40/389,901.60 = 110,149.20/x
  3. Step 3: Cross multiply
    259,934.40x = 389,901.60 × 110,149.20
  4. Step 4: Simplify right side
    259,934.40x = 42,947,349,318.72
  5. Step 5: Solve for x
    x = 42,947,349,318.72/259,934.40
  6. Step 6: Final answer
    x = 165,223.80

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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.