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Finding the Fourth Proportional to 247,014.78, 340,880.31 and 133,837.53

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Solution

The fourth proportional to 247,014.78, 340,880.31 and 133,837.53 is: 184,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,014.78 : 340,880.31 = 133,837.53 : x
  2. Step 2: Convert to fraction form
    247,014.78/340,880.31 = 133,837.53/x
  3. Step 3: Cross multiply
    247,014.78x = 340,880.31 × 133,837.53
  4. Step 4: Simplify right side
    247,014.78x = 45,622,578,716.03
  5. Step 5: Solve for x
    x = 45,622,578,716.03/247,014.78
  6. Step 6: Final answer
    x = 184,695.74

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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.