Home / 395,499.12-545,827.92-225,758.76

Finding the Fourth Proportional to 395,499.12, 545,827.92 and 225,758.76

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Solution

The fourth proportional to 395,499.12, 545,827.92 and 225,758.76 is: 311,569.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,499.12 : 545,827.92 = 225,758.76 : x
  2. Step 2: Convert to fraction form
    395,499.12/545,827.92 = 225,758.76/x
  3. Step 3: Cross multiply
    395,499.12x = 545,827.92 × 225,758.76
  4. Step 4: Simplify right side
    395,499.12x = 123,225,434,392.58
  5. Step 5: Solve for x
    x = 123,225,434,392.58/395,499.12
  6. Step 6: Final answer
    x = 311,569.43

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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.