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Finding the Fourth Proportional to 397.93, 595.82 and 395.77

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Solution

The fourth proportional to 397.93, 595.82 and 395.77 is: 592.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.93 : 595.82 = 395.77 : x
  2. Step 2: Convert to fraction form
    397.93/595.82 = 395.77/x
  3. Step 3: Cross multiply
    397.93x = 595.82 × 395.77
  4. Step 4: Simplify right side
    397.93x = 235,805.70
  5. Step 5: Solve for x
    x = 235,805.70/397.93
  6. Step 6: Final answer
    x = 592.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.