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Finding the Fourth Proportional to 269,877.60, 404,557.20 and 209,872.80

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Solution

The fourth proportional to 269,877.60, 404,557.20 and 209,872.80 is: 314,607.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,877.60 : 404,557.20 = 209,872.80 : x
  2. Step 2: Convert to fraction form
    269,877.60/404,557.20 = 209,872.80/x
  3. Step 3: Cross multiply
    269,877.60x = 404,557.20 × 209,872.80
  4. Step 4: Simplify right side
    269,877.60x = 84,905,552,324.16
  5. Step 5: Solve for x
    x = 84,905,552,324.16/269,877.60
  6. Step 6: Final answer
    x = 314,607.63

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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.