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Finding the Fourth Proportional to 269,000.60, 403,500.90 and 137,928.60

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Solution

The fourth proportional to 269,000.60, 403,500.90 and 137,928.60 is: 206,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,000.60 : 403,500.90 = 137,928.60 : x
  2. Step 2: Convert to fraction form
    269,000.60/403,500.90 = 137,928.60/x
  3. Step 3: Cross multiply
    269,000.60x = 403,500.90 × 137,928.60
  4. Step 4: Simplify right side
    269,000.60x = 55,654,314,235.74
  5. Step 5: Solve for x
    x = 55,654,314,235.74/269,000.60
  6. Step 6: Final answer
    x = 206,892.90

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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.