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Finding the Fourth Proportional to 214,145.70, 321,218.55 and 192,027.30

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Solution

The fourth proportional to 214,145.70, 321,218.55 and 192,027.30 is: 288,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,145.70 : 321,218.55 = 192,027.30 : x
  2. Step 2: Convert to fraction form
    214,145.70/321,218.55 = 192,027.30/x
  3. Step 3: Cross multiply
    214,145.70x = 321,218.55 × 192,027.30
  4. Step 4: Simplify right side
    214,145.70x = 61,682,730,866.42
  5. Step 5: Solve for x
    x = 61,682,730,866.42/214,145.70
  6. Step 6: Final answer
    x = 288,040.95

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1.5x scale

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.