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Finding the Fourth Proportional to 588.81, 812.36 and 340.09

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Solution

The fourth proportional to 588.81, 812.36 and 340.09 is: 469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.81 : 812.36 = 340.09 : x
  2. Step 2: Convert to fraction form
    588.81/812.36 = 340.09/x
  3. Step 3: Cross multiply
    588.81x = 812.36 × 340.09
  4. Step 4: Simplify right side
    588.81x = 276,275.51
  5. Step 5: Solve for x
    x = 276,275.51/588.81
  6. Step 6: Final answer
    x = 469.21

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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.