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Finding the Fourth Proportional to 247,860.12, 342,049.13 and 134,682.87

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Solution

The fourth proportional to 247,860.12, 342,049.13 and 134,682.87 is: 185,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,860.12 : 342,049.13 = 134,682.87 : x
  2. Step 2: Convert to fraction form
    247,860.12/342,049.13 = 134,682.87/x
  3. Step 3: Cross multiply
    247,860.12x = 342,049.13 × 134,682.87
  4. Step 4: Simplify right side
    247,860.12x = 46,068,158,509.40
  5. Step 5: Solve for x
    x = 46,068,158,509.40/247,860.12
  6. Step 6: Final answer
    x = 185,863.54

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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.