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Finding the Fourth Proportional to 397.48, 598.55 and 346.73

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Solution

The fourth proportional to 397.48, 598.55 and 346.73 is: 522.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.48 : 598.55 = 346.73 : x
  2. Step 2: Convert to fraction form
    397.48/598.55 = 346.73/x
  3. Step 3: Cross multiply
    397.48x = 598.55 × 346.73
  4. Step 4: Simplify right side
    397.48x = 207,531.82
  5. Step 5: Solve for x
    x = 207,531.82/397.48
  6. Step 6: Final answer
    x = 522.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.