Home / 269,238.60-402,983.10-209,752.20

Finding the Fourth Proportional to 269,238.60, 402,983.10 and 209,752.20

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Solution

The fourth proportional to 269,238.60, 402,983.10 and 209,752.20 is: 313,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,238.60 : 402,983.10 = 209,752.20 : x
  2. Step 2: Convert to fraction form
    269,238.60/402,983.10 = 209,752.20/x
  3. Step 3: Cross multiply
    269,238.60x = 402,983.10 × 209,752.20
  4. Step 4: Simplify right side
    269,238.60x = 84,526,591,787.82
  5. Step 5: Solve for x
    x = 84,526,591,787.82/269,238.60
  6. Step 6: Final answer
    x = 313,946.78

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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.