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Finding the Fourth Proportional to 653.31, 979.33 and 242.03

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Solution

The fourth proportional to 653.31, 979.33 and 242.03 is: 362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.31 : 979.33 = 242.03 : x
  2. Step 2: Convert to fraction form
    653.31/979.33 = 242.03/x
  3. Step 3: Cross multiply
    653.31x = 979.33 × 242.03
  4. Step 4: Simplify right side
    653.31x = 237,027.24
  5. Step 5: Solve for x
    x = 237,027.24/653.31
  6. Step 6: Final answer
    x = 362.81

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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.