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Finding the Fourth Proportional to 337.46, 466.07 and 309.79

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Solution

The fourth proportional to 337.46, 466.07 and 309.79 is: 427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.46 : 466.07 = 309.79 : x
  2. Step 2: Convert to fraction form
    337.46/466.07 = 309.79/x
  3. Step 3: Cross multiply
    337.46x = 466.07 × 309.79
  4. Step 4: Simplify right side
    337.46x = 144,383.83
  5. Step 5: Solve for x
    x = 144,383.83/337.46
  6. Step 6: Final answer
    x = 427.85

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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.