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Finding the Fourth Proportional to 230,104.52, 345,172.47 and 78,239.78

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Solution

The fourth proportional to 230,104.52, 345,172.47 and 78,239.78 is: 117,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,104.52 : 345,172.47 = 78,239.78 : x
  2. Step 2: Convert to fraction form
    230,104.52/345,172.47 = 78,239.78/x
  3. Step 3: Cross multiply
    230,104.52x = 345,172.47 × 78,239.78
  4. Step 4: Simplify right side
    230,104.52x = 27,006,218,114.86
  5. Step 5: Solve for x
    x = 27,006,218,114.86/230,104.52
  6. Step 6: Final answer
    x = 117,365.00

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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.