Home / 251,904.03-378,380.93-212,538.03

Finding the Fourth Proportional to 251,904.03, 378,380.93 and 212,538.03

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Solution

The fourth proportional to 251,904.03, 378,380.93 and 212,538.03 is: 319,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,904.03 : 378,380.93 = 212,538.03 : x
  2. Step 2: Convert to fraction form
    251,904.03/378,380.93 = 212,538.03/x
  3. Step 3: Cross multiply
    251,904.03x = 378,380.93 × 212,538.03
  4. Step 4: Simplify right side
    251,904.03x = 80,420,336,389.08
  5. Step 5: Solve for x
    x = 80,420,336,389.08/251,904.03
  6. Step 6: Final answer
    x = 319,249.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.