Home / 281,865.64-388,971.62-154,540.92

Finding the Fourth Proportional to 281,865.64, 388,971.62 and 154,540.92

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Solution

The fourth proportional to 281,865.64, 388,971.62 and 154,540.92 is: 213,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,865.64 : 388,971.62 = 154,540.92 : x
  2. Step 2: Convert to fraction form
    281,865.64/388,971.62 = 154,540.92/x
  3. Step 3: Cross multiply
    281,865.64x = 388,971.62 × 154,540.92
  4. Step 4: Simplify right side
    281,865.64x = 60,112,032,008.69
  5. Step 5: Solve for x
    x = 60,112,032,008.69/281,865.64
  6. Step 6: Final answer
    x = 213,264.84

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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.