Home / 269,111.20-403,666.80-206,125.60

Finding the Fourth Proportional to 269,111.20, 403,666.80 and 206,125.60

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Solution

The fourth proportional to 269,111.20, 403,666.80 and 206,125.60 is: 309,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,111.20 : 403,666.80 = 206,125.60 : x
  2. Step 2: Convert to fraction form
    269,111.20/403,666.80 = 206,125.60/x
  3. Step 3: Cross multiply
    269,111.20x = 403,666.80 × 206,125.60
  4. Step 4: Simplify right side
    269,111.20x = 83,206,061,350.08
  5. Step 5: Solve for x
    x = 83,206,061,350.08/269,111.20
  6. Step 6: Final answer
    x = 309,188.40

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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.