Home / 318,763.92-439,834.08-197,934.60

Finding the Fourth Proportional to 318,763.92, 439,834.08 and 197,934.60

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Solution

The fourth proportional to 318,763.92, 439,834.08 and 197,934.60 is: 273,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,763.92 : 439,834.08 = 197,934.60 : x
  2. Step 2: Convert to fraction form
    318,763.92/439,834.08 = 197,934.60/x
  3. Step 3: Cross multiply
    318,763.92x = 439,834.08 × 197,934.60
  4. Step 4: Simplify right side
    318,763.92x = 87,058,382,691.17
  5. Step 5: Solve for x
    x = 87,058,382,691.17/318,763.92
  6. Step 6: Final answer
    x = 273,112.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.