Home / 203,282.45-280,529.50-112,644.29

Finding the Fourth Proportional to 203,282.45, 280,529.50 and 112,644.29

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Solution

The fourth proportional to 203,282.45, 280,529.50 and 112,644.29 is: 155,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,282.45 : 280,529.50 = 112,644.29 : x
  2. Step 2: Convert to fraction form
    203,282.45/280,529.50 = 112,644.29/x
  3. Step 3: Cross multiply
    203,282.45x = 280,529.50 × 112,644.29
  4. Step 4: Simplify right side
    203,282.45x = 31,600,046,351.56
  5. Step 5: Solve for x
    x = 31,600,046,351.56/203,282.45
  6. Step 6: Final answer
    x = 155,448.96

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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.