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Finding the Fourth Proportional to 588.86, 812.68 and 340.22

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Solution

The fourth proportional to 588.86, 812.68 and 340.22 is: 469.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.86 : 812.68 = 340.22 : x
  2. Step 2: Convert to fraction form
    588.86/812.68 = 340.22/x
  3. Step 3: Cross multiply
    588.86x = 812.68 × 340.22
  4. Step 4: Simplify right side
    588.86x = 276,489.99
  5. Step 5: Solve for x
    x = 276,489.99/588.86
  6. Step 6: Final answer
    x = 469.53

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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.