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Finding the Fourth Proportional to 201,368.52, 301,864.05 and 68,155.56

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Solution

The fourth proportional to 201,368.52, 301,864.05 and 68,155.56 is: 102,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,368.52 : 301,864.05 = 68,155.56 : x
  2. Step 2: Convert to fraction form
    201,368.52/301,864.05 = 68,155.56/x
  3. Step 3: Cross multiply
    201,368.52x = 301,864.05 × 68,155.56
  4. Step 4: Simplify right side
    201,368.52x = 20,573,713,371.62
  5. Step 5: Solve for x
    x = 20,573,713,371.62/201,368.52
  6. Step 6: Final answer
    x = 102,169.46

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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.