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Finding the Fourth Proportional to 234,706.20, 351,485.11 and 211,961.40

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Solution

The fourth proportional to 234,706.20, 351,485.11 and 211,961.40 is: 317,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,706.20 : 351,485.11 = 211,961.40 : x
  2. Step 2: Convert to fraction form
    234,706.20/351,485.11 = 211,961.40/x
  3. Step 3: Cross multiply
    234,706.20x = 351,485.11 × 211,961.40
  4. Step 4: Simplify right side
    234,706.20x = 74,501,275,994.75
  5. Step 5: Solve for x
    x = 74,501,275,994.75/234,706.20
  6. Step 6: Final answer
    x = 317,423.55

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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.