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Finding the Fourth Proportional to 425.88, 588.60 and 339.48

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Solution

The fourth proportional to 425.88, 588.60 and 339.48 is: 469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.88 : 588.60 = 339.48 : x
  2. Step 2: Convert to fraction form
    425.88/588.60 = 339.48/x
  3. Step 3: Cross multiply
    425.88x = 588.60 × 339.48
  4. Step 4: Simplify right side
    425.88x = 199,817.93
  5. Step 5: Solve for x
    x = 199,817.93/425.88
  6. Step 6: Final answer
    x = 469.19

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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.