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Finding the Fourth Proportional to 453,961.60, 680,942.40 and 230,012.80

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Solution

The fourth proportional to 453,961.60, 680,942.40 and 230,012.80 is: 345,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,961.60 : 680,942.40 = 230,012.80 : x
  2. Step 2: Convert to fraction form
    453,961.60/680,942.40 = 230,012.80/x
  3. Step 3: Cross multiply
    453,961.60x = 680,942.40 × 230,012.80
  4. Step 4: Simplify right side
    453,961.60x = 156,625,468,062.72
  5. Step 5: Solve for x
    x = 156,625,468,062.72/453,961.60
  6. Step 6: Final answer
    x = 345,019.20

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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.