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Finding the Fourth Proportional to 313,517.86, 432,640.17 and 177,552.79

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Solution

The fourth proportional to 313,517.86, 432,640.17 and 177,552.79 is: 245,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,517.86 : 432,640.17 = 177,552.79 : x
  2. Step 2: Convert to fraction form
    313,517.86/432,640.17 = 177,552.79/x
  3. Step 3: Cross multiply
    313,517.86x = 432,640.17 × 177,552.79
  4. Step 4: Simplify right side
    313,517.86x = 76,816,467,086.37
  5. Step 5: Solve for x
    x = 76,816,467,086.37/313,517.86
  6. Step 6: Final answer
    x = 245,014.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.