Home / 245,764.21-368,789.61-103,600.78

Finding the Fourth Proportional to 245,764.21, 368,789.61 and 103,600.78

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Solution

The fourth proportional to 245,764.21, 368,789.61 and 103,600.78 is: 155,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,764.21 : 368,789.61 = 103,600.78 : x
  2. Step 2: Convert to fraction form
    245,764.21/368,789.61 = 103,600.78/x
  3. Step 3: Cross multiply
    245,764.21x = 368,789.61 × 103,600.78
  4. Step 4: Simplify right side
    245,764.21x = 38,206,891,251.90
  5. Step 5: Solve for x
    x = 38,206,891,251.90/245,764.21
  6. Step 6: Final answer
    x = 155,461.58

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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.