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Finding the Fourth Proportional to 297,876.78, 411,069.93 and 163,740.78

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Solution

The fourth proportional to 297,876.78, 411,069.93 and 163,740.78 is: 225,962.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,876.78 : 411,069.93 = 163,740.78 : x
  2. Step 2: Convert to fraction form
    297,876.78/411,069.93 = 163,740.78/x
  3. Step 3: Cross multiply
    297,876.78x = 411,069.93 × 163,740.78
  4. Step 4: Simplify right side
    297,876.78x = 67,308,910,972.75
  5. Step 5: Solve for x
    x = 67,308,910,972.75/297,876.78
  6. Step 6: Final answer
    x = 225,962.26

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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.