Home / 286,102.13-394,780.62-171,353.90

Finding the Fourth Proportional to 286,102.13, 394,780.62 and 171,353.90

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Solution

The fourth proportional to 286,102.13, 394,780.62 and 171,353.90 is: 236,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,102.13 : 394,780.62 = 171,353.90 : x
  2. Step 2: Convert to fraction form
    286,102.13/394,780.62 = 171,353.90/x
  3. Step 3: Cross multiply
    286,102.13x = 394,780.62 × 171,353.90
  4. Step 4: Simplify right side
    286,102.13x = 67,647,198,881.42
  5. Step 5: Solve for x
    x = 67,647,198,881.42/286,102.13
  6. Step 6: Final answer
    x = 236,444.23

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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.