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Finding the Fourth Proportional to 306.72, 460.26 and 152.64

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Solution

The fourth proportional to 306.72, 460.26 and 152.64 is: 229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.72 : 460.26 = 152.64 : x
  2. Step 2: Convert to fraction form
    306.72/460.26 = 152.64/x
  3. Step 3: Cross multiply
    306.72x = 460.26 × 152.64
  4. Step 4: Simplify right side
    306.72x = 70,254.09
  5. Step 5: Solve for x
    x = 70,254.09/306.72
  6. Step 6: Final answer
    x = 229.05

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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.