Home / 201,188.28-301,781.24-51,428.36

Finding the Fourth Proportional to 201,188.28, 301,781.24 and 51,428.36

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Solution

The fourth proportional to 201,188.28, 301,781.24 and 51,428.36 is: 77,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,188.28 : 301,781.24 = 51,428.36 : x
  2. Step 2: Convert to fraction form
    201,188.28/301,781.24 = 51,428.36/x
  3. Step 3: Cross multiply
    201,188.28x = 301,781.24 × 51,428.36
  4. Step 4: Simplify right side
    201,188.28x = 15,520,114,251.97
  5. Step 5: Solve for x
    x = 15,520,114,251.97/201,188.28
  6. Step 6: Final answer
    x = 77,142.24

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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.