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Finding the Fourth Proportional to 281,116.64, 388,067.64 and 179,278.76

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Solution

The fourth proportional to 281,116.64, 388,067.64 and 179,278.76 is: 247,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,116.64 : 388,067.64 = 179,278.76 : x
  2. Step 2: Convert to fraction form
    281,116.64/388,067.64 = 179,278.76/x
  3. Step 3: Cross multiply
    281,116.64x = 388,067.64 × 179,278.76
  4. Step 4: Simplify right side
    281,116.64x = 69,572,285,295.33
  5. Step 5: Solve for x
    x = 69,572,285,295.33/281,116.64
  6. Step 6: Final answer
    x = 247,485.48

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1.5x scale

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.