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Finding the Fourth Proportional to 312.48, 466.18 and 304.43

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Solution

The fourth proportional to 312.48, 466.18 and 304.43 is: 454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.48 : 466.18 = 304.43 : x
  2. Step 2: Convert to fraction form
    312.48/466.18 = 304.43/x
  3. Step 3: Cross multiply
    312.48x = 466.18 × 304.43
  4. Step 4: Simplify right side
    312.48x = 141,916.09
  5. Step 5: Solve for x
    x = 141,916.09/312.48
  6. Step 6: Final answer
    x = 454.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.