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Finding the Fourth Proportional to 357.25, 534.99 and 348.07

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Solution

The fourth proportional to 357.25, 534.99 and 348.07 is: 521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.25 : 534.99 = 348.07 : x
  2. Step 2: Convert to fraction form
    357.25/534.99 = 348.07/x
  3. Step 3: Cross multiply
    357.25x = 534.99 × 348.07
  4. Step 4: Simplify right side
    357.25x = 186,213.97
  5. Step 5: Solve for x
    x = 186,213.97/357.25
  6. Step 6: Final answer
    x = 521.24

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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.