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Finding the Fourth Proportional to 392,440.80, 541,569.36 and 222,674.48

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Solution

The fourth proportional to 392,440.80, 541,569.36 and 222,674.48 is: 307,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,440.80 : 541,569.36 = 222,674.48 : x
  2. Step 2: Convert to fraction form
    392,440.80/541,569.36 = 222,674.48/x
  3. Step 3: Cross multiply
    392,440.80x = 541,569.36 × 222,674.48
  4. Step 4: Simplify right side
    392,440.80x = 120,593,675,621.93
  5. Step 5: Solve for x
    x = 120,593,675,621.93/392,440.80
  6. Step 6: Final answer
    x = 307,291.38

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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.