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Finding the Fourth Proportional to 234,540, 351,810 and 103,212

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Solution

The fourth proportional to 234,540, 351,810 and 103,212 is: 154,818

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,540 : 351,810 = 103,212 : x
  2. Step 2: Convert to fraction form
    234,540/351,810 = 103,212/x
  3. Step 3: Cross multiply
    234,540x = 351,810 × 103,212
  4. Step 4: Simplify right side
    234,540x = 36,311,013,720
  5. Step 5: Solve for x
    x = 36,311,013,720/234,540
  6. Step 6: Final answer
    x = 154,818

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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.