Home / 281,867.64-388,974.38-154,542.92

Finding the Fourth Proportional to 281,867.64, 388,974.38 and 154,542.92

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Solution

The fourth proportional to 281,867.64, 388,974.38 and 154,542.92 is: 213,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,867.64 : 388,974.38 = 154,542.92 : x
  2. Step 2: Convert to fraction form
    281,867.64/388,974.38 = 154,542.92/x
  3. Step 3: Cross multiply
    281,867.64x = 388,974.38 × 154,542.92
  4. Step 4: Simplify right side
    281,867.64x = 60,113,236,490.39
  5. Step 5: Solve for x
    x = 60,113,236,490.39/281,867.64
  6. Step 6: Final answer
    x = 213,267.60

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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.