Home / 407,067.21-561,787.38-225,837.54

Finding the Fourth Proportional to 407,067.21, 561,787.38 and 225,837.54

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Solution

The fourth proportional to 407,067.21, 561,787.38 and 225,837.54 is: 311,675.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,067.21 : 561,787.38 = 225,837.54 : x
  2. Step 2: Convert to fraction form
    407,067.21/561,787.38 = 225,837.54/x
  3. Step 3: Cross multiply
    407,067.21x = 561,787.38 × 225,837.54
  4. Step 4: Simplify right side
    407,067.21x = 126,872,679,902.25
  5. Step 5: Solve for x
    x = 126,872,679,902.25/407,067.21
  6. Step 6: Final answer
    x = 311,675.02

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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.