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Finding the Fourth Proportional to 313,630.61, 432,811.92 and 192,850.80

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Solution

The fourth proportional to 313,630.61, 432,811.92 and 192,850.80 is: 266,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,630.61 : 432,811.92 = 192,850.80 : x
  2. Step 2: Convert to fraction form
    313,630.61/432,811.92 = 192,850.80/x
  3. Step 3: Cross multiply
    313,630.61x = 432,811.92 × 192,850.80
  4. Step 4: Simplify right side
    313,630.61x = 83,468,125,021.54
  5. Step 5: Solve for x
    x = 83,468,125,021.54/313,630.61
  6. Step 6: Final answer
    x = 266,135.14

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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.