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Finding the Fourth Proportional to 247,856.67, 342,044.91 and 134,679.42

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Solution

The fourth proportional to 247,856.67, 342,044.91 and 134,679.42 is: 185,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,856.67 : 342,044.91 = 134,679.42 : x
  2. Step 2: Convert to fraction form
    247,856.67/342,044.91 = 134,679.42/x
  3. Step 3: Cross multiply
    247,856.67x = 342,044.91 × 134,679.42
  4. Step 4: Simplify right side
    247,856.67x = 46,066,410,092.75
  5. Step 5: Solve for x
    x = 46,066,410,092.75/247,856.67
  6. Step 6: Final answer
    x = 185,859.07

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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.