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Finding the Fourth Proportional to 306.24, 460.32 and 242.40

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Solution

The fourth proportional to 306.24, 460.32 and 242.40 is: 364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.24 : 460.32 = 242.40 : x
  2. Step 2: Convert to fraction form
    306.24/460.32 = 242.40/x
  3. Step 3: Cross multiply
    306.24x = 460.32 × 242.40
  4. Step 4: Simplify right side
    306.24x = 111,581.57
  5. Step 5: Solve for x
    x = 111,581.57/306.24
  6. Step 6: Final answer
    x = 364.36

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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.