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Finding the Fourth Proportional to 313,142.70, 469,744.79 and 88,504.86

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Solution

The fourth proportional to 313,142.70, 469,744.79 and 88,504.86 is: 132,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,142.70 : 469,744.79 = 88,504.86 : x
  2. Step 2: Convert to fraction form
    313,142.70/469,744.79 = 88,504.86/x
  3. Step 3: Cross multiply
    313,142.70x = 469,744.79 × 88,504.86
  4. Step 4: Simplify right side
    313,142.70x = 41,574,694,083.43
  5. Step 5: Solve for x
    x = 41,574,694,083.43/313,142.70
  6. Step 6: Final answer
    x = 132,765.97

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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.