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Finding the Fourth Proportional to 601.39, 901.30 and 308.65

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Solution

The fourth proportional to 601.39, 901.30 and 308.65 is: 462.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.39 : 901.30 = 308.65 : x
  2. Step 2: Convert to fraction form
    601.39/901.30 = 308.65/x
  3. Step 3: Cross multiply
    601.39x = 901.30 × 308.65
  4. Step 4: Simplify right side
    601.39x = 278,181.74
  5. Step 5: Solve for x
    x = 278,181.74/601.39
  6. Step 6: Final answer
    x = 462.56

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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.