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Finding the Fourth Proportional to 462.14, 637.63 and 306.89

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Solution

The fourth proportional to 462.14, 637.63 and 306.89 is: 423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.14 : 637.63 = 306.89 : x
  2. Step 2: Convert to fraction form
    462.14/637.63 = 306.89/x
  3. Step 3: Cross multiply
    462.14x = 637.63 × 306.89
  4. Step 4: Simplify right side
    462.14x = 195,678.32
  5. Step 5: Solve for x
    x = 195,678.32/462.14
  6. Step 6: Final answer
    x = 423.42

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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.