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Finding the Fourth Proportional to 269,807.78, 404,713.30 and 120,012.86

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Solution

The fourth proportional to 269,807.78, 404,713.30 and 120,012.86 is: 180,020.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,807.78 : 404,713.30 = 120,012.86 : x
  2. Step 2: Convert to fraction form
    269,807.78/404,713.30 = 120,012.86/x
  3. Step 3: Cross multiply
    269,807.78x = 404,713.30 × 120,012.86
  4. Step 4: Simplify right side
    269,807.78x = 48,570,800,613.04
  5. Step 5: Solve for x
    x = 48,570,800,613.04/269,807.78
  6. Step 6: Final answer
    x = 180,020.02

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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.