Home / 221,215.05-331,860.24-71,437.14

Finding the Fourth Proportional to 221,215.05, 331,860.24 and 71,437.14

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Solution

The fourth proportional to 221,215.05, 331,860.24 and 71,437.14 is: 107,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,215.05 : 331,860.24 = 71,437.14 : x
  2. Step 2: Convert to fraction form
    221,215.05/331,860.24 = 71,437.14/x
  3. Step 3: Cross multiply
    221,215.05x = 331,860.24 × 71,437.14
  4. Step 4: Simplify right side
    221,215.05x = 23,707,146,425.31
  5. Step 5: Solve for x
    x = 23,707,146,425.31/221,215.05
  6. Step 6: Final answer
    x = 107,167.87

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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.