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Finding the Fourth Proportional to 201,141.20, 301,881.90 and 82,897.40

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Solution

The fourth proportional to 201,141.20, 301,881.90 and 82,897.40 is: 124,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,141.20 : 301,881.90 = 82,897.40 : x
  2. Step 2: Convert to fraction form
    201,141.20/301,881.90 = 82,897.40/x
  3. Step 3: Cross multiply
    201,141.20x = 301,881.90 × 82,897.40
  4. Step 4: Simplify right side
    201,141.20x = 25,025,224,617.06
  5. Step 5: Solve for x
    x = 25,025,224,617.06/201,141.20
  6. Step 6: Final answer
    x = 124,416.20

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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.