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Finding the Fourth Proportional to 280,197, 386,671.86 and 179,595

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Solution

The fourth proportional to 280,197, 386,671.86 and 179,595 is: 247,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,197 : 386,671.86 = 179,595 : x
  2. Step 2: Convert to fraction form
    280,197/386,671.86 = 179,595/x
  3. Step 3: Cross multiply
    280,197x = 386,671.86 × 179,595
  4. Step 4: Simplify right side
    280,197x = 69,444,332,696.70
  5. Step 5: Solve for x
    x = 69,444,332,696.70/280,197
  6. Step 6: Final answer
    x = 247,841.10

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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.