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Finding the Fourth Proportional to 269,639.20, 404,458.80 and 269,639.20

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Solution

The fourth proportional to 269,639.20, 404,458.80 and 269,639.20 is: 404,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,639.20 : 404,458.80 = 269,639.20 : x
  2. Step 2: Convert to fraction form
    269,639.20/404,458.80 = 269,639.20/x
  3. Step 3: Cross multiply
    269,639.20x = 404,458.80 × 269,639.20
  4. Step 4: Simplify right side
    269,639.20x = 109,057,947,264.96
  5. Step 5: Solve for x
    x = 109,057,947,264.96/269,639.20
  6. Step 6: Final answer
    x = 404,458.80

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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.