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Finding the Fourth Proportional to 269,759.73, 404,639.31 and 80,219.34

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Solution

The fourth proportional to 269,759.73, 404,639.31 and 80,219.34 is: 120,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,759.73 : 404,639.31 = 80,219.34 : x
  2. Step 2: Convert to fraction form
    269,759.73/404,639.31 = 80,219.34/x
  3. Step 3: Cross multiply
    269,759.73x = 404,639.31 × 80,219.34
  4. Step 4: Simplify right side
    269,759.73x = 32,459,898,386.26
  5. Step 5: Solve for x
    x = 32,459,898,386.26/269,759.73
  6. Step 6: Final answer
    x = 120,328.93

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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.