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Finding the Fourth Proportional to 709.08, 1,063.58 and 196.08

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Solution

The fourth proportional to 709.08, 1,063.58 and 196.08 is: 294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    709.08 : 1,063.58 = 196.08 : x
  2. Step 2: Convert to fraction form
    709.08/1,063.58 = 196.08/x
  3. Step 3: Cross multiply
    709.08x = 1,063.58 × 196.08
  4. Step 4: Simplify right side
    709.08x = 208,546.77
  5. Step 5: Solve for x
    x = 208,546.77/709.08
  6. Step 6: Final answer
    x = 294.11

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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.