Home / 287,936.24-431,912.04-100,958.96

Finding the Fourth Proportional to 287,936.24, 431,912.04 and 100,958.96

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Solution

The fourth proportional to 287,936.24, 431,912.04 and 100,958.96 is: 151,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,936.24 : 431,912.04 = 100,958.96 : x
  2. Step 2: Convert to fraction form
    287,936.24/431,912.04 = 100,958.96/x
  3. Step 3: Cross multiply
    287,936.24x = 431,912.04 × 100,958.96
  4. Step 4: Simplify right side
    287,936.24x = 43,605,390,369.88
  5. Step 5: Solve for x
    x = 43,605,390,369.88/287,936.24
  6. Step 6: Final answer
    x = 151,441.13

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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.