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Finding the Fourth Proportional to 325,211.60, 487,537.06 and 125,672

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Solution

The fourth proportional to 325,211.60, 487,537.06 and 125,672 is: 188,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,211.60 : 487,537.06 = 125,672 : x
  2. Step 2: Convert to fraction form
    325,211.60/487,537.06 = 125,672/x
  3. Step 3: Cross multiply
    325,211.60x = 487,537.06 × 125,672
  4. Step 4: Simplify right side
    325,211.60x = 61,269,757,404.32
  5. Step 5: Solve for x
    x = 61,269,757,404.32/325,211.60
  6. Step 6: Final answer
    x = 188,399.67

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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.