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Finding the Fourth Proportional to 247,825.78, 341,995.36 and 134,647.72

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Solution

The fourth proportional to 247,825.78, 341,995.36 and 134,647.72 is: 185,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,825.78 : 341,995.36 = 134,647.72 : x
  2. Step 2: Convert to fraction form
    247,825.78/341,995.36 = 134,647.72/x
  3. Step 3: Cross multiply
    247,825.78x = 341,995.36 × 134,647.72
  4. Step 4: Simplify right side
    247,825.78x = 46,048,895,474.58
  5. Step 5: Solve for x
    x = 46,048,895,474.58/247,825.78
  6. Step 6: Final answer
    x = 185,811.56

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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.