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Finding the Fourth Proportional to 247,000, 340,860.32 and 133,822.74

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Solution

The fourth proportional to 247,000, 340,860.32 and 133,822.74 is: 184,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,000 : 340,860.32 = 133,822.74 : x
  2. Step 2: Convert to fraction form
    247,000/340,860.32 = 133,822.74/x
  3. Step 3: Cross multiply
    247,000x = 340,860.32 × 133,822.74
  4. Step 4: Simplify right side
    247,000x = 45,614,861,979.68
  5. Step 5: Solve for x
    x = 45,614,861,979.68/247,000
  6. Step 6: Final answer
    x = 184,675.55

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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.