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Finding the Fourth Proportional to 268,876.62, 371,008.62 and 155,677.50

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Solution

The fourth proportional to 268,876.62, 371,008.62 and 155,677.50 is: 214,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,876.62 : 371,008.62 = 155,677.50 : x
  2. Step 2: Convert to fraction form
    268,876.62/371,008.62 = 155,677.50/x
  3. Step 3: Cross multiply
    268,876.62x = 371,008.62 × 155,677.50
  4. Step 4: Simplify right side
    268,876.62x = 57,757,694,440.05
  5. Step 5: Solve for x
    x = 57,757,694,440.05/268,876.62
  6. Step 6: Final answer
    x = 214,811.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.