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Finding the Fourth Proportional to 698.08, 1,047.04 and 242.08

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Solution

The fourth proportional to 698.08, 1,047.04 and 242.08 is: 363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.08 : 1,047.04 = 242.08 : x
  2. Step 2: Convert to fraction form
    698.08/1,047.04 = 242.08/x
  3. Step 3: Cross multiply
    698.08x = 1,047.04 × 242.08
  4. Step 4: Simplify right side
    698.08x = 253,467.44
  5. Step 5: Solve for x
    x = 253,467.44/698.08
  6. Step 6: Final answer
    x = 363.09

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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.