Home / 281,212.56-388,072.62-153,887.04

Finding the Fourth Proportional to 281,212.56, 388,072.62 and 153,887.04

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Solution

The fourth proportional to 281,212.56, 388,072.62 and 153,887.04 is: 212,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,212.56 : 388,072.62 = 153,887.04 : x
  2. Step 2: Convert to fraction form
    281,212.56/388,072.62 = 153,887.04/x
  3. Step 3: Cross multiply
    281,212.56x = 388,072.62 × 153,887.04
  4. Step 4: Simplify right side
    281,212.56x = 59,719,346,796.84
  5. Step 5: Solve for x
    x = 59,719,346,796.84/281,212.56
  6. Step 6: Final answer
    x = 212,363.73

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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.