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Finding the Fourth Proportional to 312.74, 466.58 and 301.53

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Solution

The fourth proportional to 312.74, 466.58 and 301.53 is: 449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.74 : 466.58 = 301.53 : x
  2. Step 2: Convert to fraction form
    312.74/466.58 = 301.53/x
  3. Step 3: Cross multiply
    312.74x = 466.58 × 301.53
  4. Step 4: Simplify right side
    312.74x = 140,686.36
  5. Step 5: Solve for x
    x = 140,686.36/312.74
  6. Step 6: Final answer
    x = 449.86

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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.