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Finding the Fourth Proportional to 400,759.60, 601,139.40 and 101,241.04

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Solution

The fourth proportional to 400,759.60, 601,139.40 and 101,241.04 is: 151,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,759.60 : 601,139.40 = 101,241.04 : x
  2. Step 2: Convert to fraction form
    400,759.60/601,139.40 = 101,241.04/x
  3. Step 3: Cross multiply
    400,759.60x = 601,139.40 × 101,241.04
  4. Step 4: Simplify right side
    400,759.60x = 60,859,978,040.98
  5. Step 5: Solve for x
    x = 60,859,978,040.98/400,759.60
  6. Step 6: Final answer
    x = 151,861.56

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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.