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Finding the Fourth Proportional to 491,720.20, 737,580.30 and 159,296.20

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Solution

The fourth proportional to 491,720.20, 737,580.30 and 159,296.20 is: 238,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,720.20 : 737,580.30 = 159,296.20 : x
  2. Step 2: Convert to fraction form
    491,720.20/737,580.30 = 159,296.20/x
  3. Step 3: Cross multiply
    491,720.20x = 737,580.30 × 159,296.20
  4. Step 4: Simplify right side
    491,720.20x = 117,493,738,984.86
  5. Step 5: Solve for x
    x = 117,493,738,984.86/491,720.20
  6. Step 6: Final answer
    x = 238,944.30

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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.