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Finding the Fourth Proportional to 269,659.50, 404,489.26 and 72,667.50

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Solution

The fourth proportional to 269,659.50, 404,489.26 and 72,667.50 is: 109,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,659.50 : 404,489.26 = 72,667.50 : x
  2. Step 2: Convert to fraction form
    269,659.50/404,489.26 = 72,667.50/x
  3. Step 3: Cross multiply
    269,659.50x = 404,489.26 × 72,667.50
  4. Step 4: Simplify right side
    269,659.50x = 29,393,223,301.05
  5. Step 5: Solve for x
    x = 29,393,223,301.05/269,659.50
  6. Step 6: Final answer
    x = 109,001.25

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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.