Home / 251,195.40-377,667.90-212,704.20

Finding the Fourth Proportional to 251,195.40, 377,667.90 and 212,704.20

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Solution

The fourth proportional to 251,195.40, 377,667.90 and 212,704.20 is: 319,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,195.40 : 377,667.90 = 212,704.20 : x
  2. Step 2: Convert to fraction form
    251,195.40/377,667.90 = 212,704.20/x
  3. Step 3: Cross multiply
    251,195.40x = 377,667.90 × 212,704.20
  4. Step 4: Simplify right side
    251,195.40x = 80,331,548,535.18
  5. Step 5: Solve for x
    x = 80,331,548,535.18/251,195.40
  6. Step 6: Final answer
    x = 319,797.05

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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.