Home / 281,757.08-388,823.96-154,432.28

Finding the Fourth Proportional to 281,757.08, 388,823.96 and 154,432.28

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Solution

The fourth proportional to 281,757.08, 388,823.96 and 154,432.28 is: 213,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,757.08 : 388,823.96 = 154,432.28 : x
  2. Step 2: Convert to fraction form
    281,757.08/388,823.96 = 154,432.28/x
  3. Step 3: Cross multiply
    281,757.08x = 388,823.96 × 154,432.28
  4. Step 4: Simplify right side
    281,757.08x = 60,046,970,661.43
  5. Step 5: Solve for x
    x = 60,046,970,661.43/281,757.08
  6. Step 6: Final answer
    x = 213,116.10

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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.