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Finding the Fourth Proportional to 247,884.12, 342,078.52 and 134,706.88

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Solution

The fourth proportional to 247,884.12, 342,078.52 and 134,706.88 is: 185,894.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,884.12 : 342,078.52 = 134,706.88 : x
  2. Step 2: Convert to fraction form
    247,884.12/342,078.52 = 134,706.88/x
  3. Step 3: Cross multiply
    247,884.12x = 342,078.52 × 134,706.88
  4. Step 4: Simplify right side
    247,884.12x = 46,080,330,144.22
  5. Step 5: Solve for x
    x = 46,080,330,144.22/247,884.12
  6. Step 6: Final answer
    x = 185,894.64

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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.