Home / 378,748.41-522,672.85-208,982.53

Finding the Fourth Proportional to 378,748.41, 522,672.85 and 208,982.53

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Solution

The fourth proportional to 378,748.41, 522,672.85 and 208,982.53 is: 288,395.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,748.41 : 522,672.85 = 208,982.53 : x
  2. Step 2: Convert to fraction form
    378,748.41/522,672.85 = 208,982.53/x
  3. Step 3: Cross multiply
    378,748.41x = 522,672.85 × 208,982.53
  4. Step 4: Simplify right side
    378,748.41x = 109,229,495,469.88
  5. Step 5: Solve for x
    x = 109,229,495,469.88/378,748.41
  6. Step 6: Final answer
    x = 288,395.92

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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.