Home / 245,900.20-368,331.90-219,634.60

Finding the Fourth Proportional to 245,900.20, 368,331.90 and 219,634.60

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Solution

The fourth proportional to 245,900.20, 368,331.90 and 219,634.60 is: 328,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,900.20 : 368,331.90 = 219,634.60 : x
  2. Step 2: Convert to fraction form
    245,900.20/368,331.90 = 219,634.60/x
  3. Step 3: Cross multiply
    245,900.20x = 368,331.90 × 219,634.60
  4. Step 4: Simplify right side
    245,900.20x = 80,898,429,523.74
  5. Step 5: Solve for x
    x = 80,898,429,523.74/245,900.20
  6. Step 6: Final answer
    x = 328,988.87

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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.