Home / 379,209.25-523,308.77-209,454.31

Finding the Fourth Proportional to 379,209.25, 523,308.77 and 209,454.31

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Solution

The fourth proportional to 379,209.25, 523,308.77 and 209,454.31 is: 289,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,209.25 : 523,308.77 = 209,454.31 : x
  2. Step 2: Convert to fraction form
    379,209.25/523,308.77 = 209,454.31/x
  3. Step 3: Cross multiply
    379,209.25x = 523,308.77 × 209,454.31
  4. Step 4: Simplify right side
    379,209.25x = 109,609,277,337.30
  5. Step 5: Solve for x
    x = 109,609,277,337.30/379,209.25
  6. Step 6: Final answer
    x = 289,046.95

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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.