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Finding the Fourth Proportional to 230,717.70, 345,805.20 and 104,210.28

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Solution

The fourth proportional to 230,717.70, 345,805.20 and 104,210.28 is: 156,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,717.70 : 345,805.20 = 104,210.28 : x
  2. Step 2: Convert to fraction form
    230,717.70/345,805.20 = 104,210.28/x
  3. Step 3: Cross multiply
    230,717.70x = 345,805.20 × 104,210.28
  4. Step 4: Simplify right side
    230,717.70x = 36,036,456,717.46
  5. Step 5: Solve for x
    x = 36,036,456,717.46/230,717.70
  6. Step 6: Final answer
    x = 156,192.86

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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.