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Finding the Fourth Proportional to 201,061.40, 301,446.30 and 82,671.80

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Solution

The fourth proportional to 201,061.40, 301,446.30 and 82,671.80 is: 123,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,061.40 : 301,446.30 = 82,671.80 : x
  2. Step 2: Convert to fraction form
    201,061.40/301,446.30 = 82,671.80/x
  3. Step 3: Cross multiply
    201,061.40x = 301,446.30 × 82,671.80
  4. Step 4: Simplify right side
    201,061.40x = 24,921,108,224.34
  5. Step 5: Solve for x
    x = 24,921,108,224.34/201,061.40
  6. Step 6: Final answer
    x = 123,947.75

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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.