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Finding the Fourth Proportional to 490,538.44, 735,805.86 and 135,551.80

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Solution

The fourth proportional to 490,538.44, 735,805.86 and 135,551.80 is: 203,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,538.44 : 735,805.86 = 135,551.80 : x
  2. Step 2: Convert to fraction form
    490,538.44/735,805.86 = 135,551.80/x
  3. Step 3: Cross multiply
    490,538.44x = 735,805.86 × 135,551.80
  4. Step 4: Simplify right side
    490,538.44x = 99,739,808,773.55
  5. Step 5: Solve for x
    x = 99,739,808,773.55/490,538.44
  6. Step 6: Final answer
    x = 203,327.20

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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.