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Finding the Fourth Proportional to 269,440.60, 404,160.90 and 69,759.40

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Solution

The fourth proportional to 269,440.60, 404,160.90 and 69,759.40 is: 104,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,440.60 : 404,160.90 = 69,759.40 : x
  2. Step 2: Convert to fraction form
    269,440.60/404,160.90 = 69,759.40/x
  3. Step 3: Cross multiply
    269,440.60x = 404,160.90 × 69,759.40
  4. Step 4: Simplify right side
    269,440.60x = 28,194,021,887.46
  5. Step 5: Solve for x
    x = 28,194,021,887.46/269,440.60
  6. Step 6: Final answer
    x = 104,639.10

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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.