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Finding the Fourth Proportional to 601.81, 902.28 and 308.74

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Solution

The fourth proportional to 601.81, 902.28 and 308.74 is: 462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.81 : 902.28 = 308.74 : x
  2. Step 2: Convert to fraction form
    601.81/902.28 = 308.74/x
  3. Step 3: Cross multiply
    601.81x = 902.28 × 308.74
  4. Step 4: Simplify right side
    601.81x = 278,567.67
  5. Step 5: Solve for x
    x = 278,567.67/601.81
  6. Step 6: Final answer
    x = 462.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.