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Finding the Fourth Proportional to 201,371.52, 301,868.55 and 68,158.56

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Solution

The fourth proportional to 201,371.52, 301,868.55 and 68,158.56 is: 102,173.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,371.52 : 301,868.55 = 68,158.56 : x
  2. Step 2: Convert to fraction form
    201,371.52/301,868.55 = 68,158.56/x
  3. Step 3: Cross multiply
    201,371.52x = 301,868.55 × 68,158.56
  4. Step 4: Simplify right side
    201,371.52x = 20,574,925,677.29
  5. Step 5: Solve for x
    x = 20,574,925,677.29/201,371.52
  6. Step 6: Final answer
    x = 102,173.96

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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.