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Finding the Fourth Proportional to 268,179.62, 402,435.54 and 155,912.67

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Solution

The fourth proportional to 268,179.62, 402,435.54 and 155,912.67 is: 233,965.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,179.62 : 402,435.54 = 155,912.67 : x
  2. Step 2: Convert to fraction form
    268,179.62/402,435.54 = 155,912.67/x
  3. Step 3: Cross multiply
    268,179.62x = 402,435.54 × 155,912.67
  4. Step 4: Simplify right side
    268,179.62x = 62,744,799,544.29
  5. Step 5: Solve for x
    x = 62,744,799,544.29/268,179.62
  6. Step 6: Final answer
    x = 233,965.58

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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.