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Finding the Fourth Proportional to 201,369.52, 301,865.55 and 68,156.56

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Solution

The fourth proportional to 201,369.52, 301,865.55 and 68,156.56 is: 102,170.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,369.52 : 301,865.55 = 68,156.56 : x
  2. Step 2: Convert to fraction form
    201,369.52/301,865.55 = 68,156.56/x
  3. Step 3: Cross multiply
    201,369.52x = 301,865.55 × 68,156.56
  4. Step 4: Simplify right side
    201,369.52x = 20,574,117,470.51
  5. Step 5: Solve for x
    x = 20,574,117,470.51/201,369.52
  6. Step 6: Final answer
    x = 102,170.96

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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.