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Finding the Fourth Proportional to 466.76, 643.20 and 335.72

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Solution

The fourth proportional to 466.76, 643.20 and 335.72 is: 462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.76 : 643.20 = 335.72 : x
  2. Step 2: Convert to fraction form
    466.76/643.20 = 335.72/x
  3. Step 3: Cross multiply
    466.76x = 643.20 × 335.72
  4. Step 4: Simplify right side
    466.76x = 215,935.10
  5. Step 5: Solve for x
    x = 215,935.10/466.76
  6. Step 6: Final answer
    x = 462.63

Related Problems

Find fourth proportional to 233.38, 321.60 and 167.86
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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.