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Finding the Fourth Proportional to 426.01, 588 and 286.39

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Solution

The fourth proportional to 426.01, 588 and 286.39 is: 395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.01 : 588 = 286.39 : x
  2. Step 2: Convert to fraction form
    426.01/588 = 286.39/x
  3. Step 3: Cross multiply
    426.01x = 588 × 286.39
  4. Step 4: Simplify right side
    426.01x = 168,397.32
  5. Step 5: Solve for x
    x = 168,397.32/426.01
  6. Step 6: Final answer
    x = 395.29

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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.