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Finding the Fourth Proportional to 425.07, 584.01 and 395.01

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Solution

The fourth proportional to 425.07, 584.01 and 395.01 is: 542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.07 : 584.01 = 395.01 : x
  2. Step 2: Convert to fraction form
    425.07/584.01 = 395.01/x
  3. Step 3: Cross multiply
    425.07x = 584.01 × 395.01
  4. Step 4: Simplify right side
    425.07x = 230,689.79
  5. Step 5: Solve for x
    x = 230,689.79/425.07
  6. Step 6: Final answer
    x = 542.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.