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Finding the Fourth Proportional to 709.21, 1,063.77 and 246.95

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Solution

The fourth proportional to 709.21, 1,063.77 and 246.95 is: 370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    709.21 : 1,063.77 = 246.95 : x
  2. Step 2: Convert to fraction form
    709.21/1,063.77 = 246.95/x
  3. Step 3: Cross multiply
    709.21x = 1,063.77 × 246.95
  4. Step 4: Simplify right side
    709.21x = 262,698.00
  5. Step 5: Solve for x
    x = 262,698.00/709.21
  6. Step 6: Final answer
    x = 370.41

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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.