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Finding the Fourth Proportional to 653.34, 979.98 and 242.32

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Solution

The fourth proportional to 653.34, 979.98 and 242.32 is: 363.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.34 : 979.98 = 242.32 : x
  2. Step 2: Convert to fraction form
    653.34/979.98 = 242.32/x
  3. Step 3: Cross multiply
    653.34x = 979.98 × 242.32
  4. Step 4: Simplify right side
    653.34x = 237,468.75
  5. Step 5: Solve for x
    x = 237,468.75/653.34
  6. Step 6: Final answer
    x = 363.47

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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.