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Finding the Fourth Proportional to 588.82, 812.65 and 340.15

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Solution

The fourth proportional to 588.82, 812.65 and 340.15 is: 469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.82 : 812.65 = 340.15 : x
  2. Step 2: Convert to fraction form
    588.82/812.65 = 340.15/x
  3. Step 3: Cross multiply
    588.82x = 812.65 × 340.15
  4. Step 4: Simplify right side
    588.82x = 276,420.18
  5. Step 5: Solve for x
    x = 276,420.18/588.82
  6. Step 6: Final answer
    x = 469.44

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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.