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Finding the Fourth Proportional to 446.07, 614.82 and 313.34

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Solution

The fourth proportional to 446.07, 614.82 and 313.34 is: 431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.07 : 614.82 = 313.34 : x
  2. Step 2: Convert to fraction form
    446.07/614.82 = 313.34/x
  3. Step 3: Cross multiply
    446.07x = 614.82 × 313.34
  4. Step 4: Simplify right side
    446.07x = 192,644.62
  5. Step 5: Solve for x
    x = 192,644.62/446.07
  6. Step 6: Final answer
    x = 431.87

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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.