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Finding the Fourth Proportional to 469.14, 647.33 and 301.24

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Solution

The fourth proportional to 469.14, 647.33 and 301.24 is: 415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.14 : 647.33 = 301.24 : x
  2. Step 2: Convert to fraction form
    469.14/647.33 = 301.24/x
  3. Step 3: Cross multiply
    469.14x = 647.33 × 301.24
  4. Step 4: Simplify right side
    469.14x = 195,001.69
  5. Step 5: Solve for x
    x = 195,001.69/469.14
  6. Step 6: Final answer
    x = 415.66

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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.