Home / 281,821.16-388,954.75-178,464.79

Finding the Fourth Proportional to 281,821.16, 388,954.75 and 178,464.79

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Solution

The fourth proportional to 281,821.16, 388,954.75 and 178,464.79 is: 246,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,821.16 : 388,954.75 = 178,464.79 : x
  2. Step 2: Convert to fraction form
    281,821.16/388,954.75 = 178,464.79/x
  3. Step 3: Cross multiply
    281,821.16x = 388,954.75 × 178,464.79
  4. Step 4: Simplify right side
    281,821.16x = 69,414,727,778.25
  5. Step 5: Solve for x
    x = 69,414,727,778.25/281,821.16
  6. Step 6: Final answer
    x = 246,307.72

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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.