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Finding the Fourth Proportional to 384.03, 576.45 and 316.26

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Solution

The fourth proportional to 384.03, 576.45 and 316.26 is: 474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.03 : 576.45 = 316.26 : x
  2. Step 2: Convert to fraction form
    384.03/576.45 = 316.26/x
  3. Step 3: Cross multiply
    384.03x = 576.45 × 316.26
  4. Step 4: Simplify right side
    384.03x = 182,308.08
  5. Step 5: Solve for x
    x = 182,308.08/384.03
  6. Step 6: Final answer
    x = 474.72

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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.