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Finding the Fourth Proportional to 217,774.56, 326,592.72 and 69,996

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Solution

The fourth proportional to 217,774.56, 326,592.72 and 69,996 is: 104,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,774.56 : 326,592.72 = 69,996 : x
  2. Step 2: Convert to fraction form
    217,774.56/326,592.72 = 69,996/x
  3. Step 3: Cross multiply
    217,774.56x = 326,592.72 × 69,996
  4. Step 4: Simplify right side
    217,774.56x = 22,860,184,029.12
  5. Step 5: Solve for x
    x = 22,860,184,029.12/217,774.56
  6. Step 6: Final answer
    x = 104,971.78

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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.