Home / 217,529.28-325,907.68-90,890.74

Finding the Fourth Proportional to 217,529.28, 325,907.68 and 90,890.74

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Solution

The fourth proportional to 217,529.28, 325,907.68 and 90,890.74 is: 136,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,529.28 : 325,907.68 = 90,890.74 : x
  2. Step 2: Convert to fraction form
    217,529.28/325,907.68 = 90,890.74/x
  3. Step 3: Cross multiply
    217,529.28x = 325,907.68 × 90,890.74
  4. Step 4: Simplify right side
    217,529.28x = 29,621,990,206.88
  5. Step 5: Solve for x
    x = 29,621,990,206.88/217,529.28
  6. Step 6: Final answer
    x = 136,174.73

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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.