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Finding the Fourth Proportional to 269,881.20, 404,821.80 and 82,892.40

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Solution

The fourth proportional to 269,881.20, 404,821.80 and 82,892.40 is: 124,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,881.20 : 404,821.80 = 82,892.40 : x
  2. Step 2: Convert to fraction form
    269,881.20/404,821.80 = 82,892.40/x
  3. Step 3: Cross multiply
    269,881.20x = 404,821.80 × 82,892.40
  4. Step 4: Simplify right side
    269,881.20x = 33,556,650,574.32
  5. Step 5: Solve for x
    x = 33,556,650,574.32/269,881.20
  6. Step 6: Final answer
    x = 124,338.60

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1.5x scale

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.