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Finding the Fourth Proportional to 313.25, 470.23 and 304.97

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Solution

The fourth proportional to 313.25, 470.23 and 304.97 is: 457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.25 : 470.23 = 304.97 : x
  2. Step 2: Convert to fraction form
    313.25/470.23 = 304.97/x
  3. Step 3: Cross multiply
    313.25x = 470.23 × 304.97
  4. Step 4: Simplify right side
    313.25x = 143,402.93
  5. Step 5: Solve for x
    x = 143,402.93/313.25
  6. Step 6: Final answer
    x = 457.80

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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.