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Finding the Fourth Proportional to 135,278.40, 202,946.40 and 41,793.60

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Solution

The fourth proportional to 135,278.40, 202,946.40 and 41,793.60 is: 62,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,278.40 : 202,946.40 = 41,793.60 : x
  2. Step 2: Convert to fraction form
    135,278.40/202,946.40 = 41,793.60/x
  3. Step 3: Cross multiply
    135,278.40x = 202,946.40 × 41,793.60
  4. Step 4: Simplify right side
    135,278.40x = 8,481,860,663.04
  5. Step 5: Solve for x
    x = 8,481,860,663.04/135,278.40
  6. Step 6: Final answer
    x = 62,699.30

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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.