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Finding the Fourth Proportional to 269,543.70, 404,242.65 and 80,003.70

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Solution

The fourth proportional to 269,543.70, 404,242.65 and 80,003.70 is: 119,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,543.70 : 404,242.65 = 80,003.70 : x
  2. Step 2: Convert to fraction form
    269,543.70/404,242.65 = 80,003.70/x
  3. Step 3: Cross multiply
    269,543.70x = 404,242.65 × 80,003.70
  4. Step 4: Simplify right side
    269,543.70x = 32,340,907,697.81
  5. Step 5: Solve for x
    x = 32,340,907,697.81/269,543.70
  6. Step 6: Final answer
    x = 119,983.91

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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.