Home / 327,778.63-491,695.28-91,123.36

Finding the Fourth Proportional to 327,778.63, 491,695.28 and 91,123.36

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Solution

The fourth proportional to 327,778.63, 491,695.28 and 91,123.36 is: 136,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,778.63 : 491,695.28 = 91,123.36 : x
  2. Step 2: Convert to fraction form
    327,778.63/491,695.28 = 91,123.36/x
  3. Step 3: Cross multiply
    327,778.63x = 491,695.28 × 91,123.36
  4. Step 4: Simplify right side
    327,778.63x = 44,804,926,009.74
  5. Step 5: Solve for x
    x = 44,804,926,009.74/327,778.63
  6. Step 6: Final answer
    x = 136,692.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.