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Finding the Fourth Proportional to 490,236.49, 735,397.10 and 135,250.50

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Solution

The fourth proportional to 490,236.49, 735,397.10 and 135,250.50 is: 202,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,236.49 : 735,397.10 = 135,250.50 : x
  2. Step 2: Convert to fraction form
    490,236.49/735,397.10 = 135,250.50/x
  3. Step 3: Cross multiply
    490,236.49x = 735,397.10 × 135,250.50
  4. Step 4: Simplify right side
    490,236.49x = 99,462,825,473.55
  5. Step 5: Solve for x
    x = 99,462,825,473.55/490,236.49
  6. Step 6: Final answer
    x = 202,887.44

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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.