Home / 395,011.28-545,115.22-222,965.46

Finding the Fourth Proportional to 395,011.28, 545,115.22 and 222,965.46

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Solution

The fourth proportional to 395,011.28, 545,115.22 and 222,965.46 is: 307,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,011.28 : 545,115.22 = 222,965.46 : x
  2. Step 2: Convert to fraction form
    395,011.28/545,115.22 = 222,965.46/x
  3. Step 3: Cross multiply
    395,011.28x = 545,115.22 × 222,965.46
  4. Step 4: Simplify right side
    395,011.28x = 121,541,865,222.89
  5. Step 5: Solve for x
    x = 121,541,865,222.89/395,011.28
  6. Step 6: Final answer
    x = 307,692.14

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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.