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Finding the Fourth Proportional to 234,539, 351,808.50 and 103,211

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Solution

The fourth proportional to 234,539, 351,808.50 and 103,211 is: 154,816.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,539 : 351,808.50 = 103,211 : x
  2. Step 2: Convert to fraction form
    234,539/351,808.50 = 103,211/x
  3. Step 3: Cross multiply
    234,539x = 351,808.50 × 103,211
  4. Step 4: Simplify right side
    234,539x = 36,310,507,093.50
  5. Step 5: Solve for x
    x = 36,310,507,093.50/234,539
  6. Step 6: Final answer
    x = 154,816.50

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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.