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Finding the Fourth Proportional to 269,528.30, 404,292.45 and 82,539.80

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Solution

The fourth proportional to 269,528.30, 404,292.45 and 82,539.80 is: 123,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,528.30 : 404,292.45 = 82,539.80 : x
  2. Step 2: Convert to fraction form
    269,528.30/404,292.45 = 82,539.80/x
  3. Step 3: Cross multiply
    269,528.30x = 404,292.45 × 82,539.80
  4. Step 4: Simplify right side
    269,528.30x = 33,370,217,964.51
  5. Step 5: Solve for x
    x = 33,370,217,964.51/269,528.30
  6. Step 6: Final answer
    x = 123,809.70

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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.