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Finding the Fourth Proportional to 395.00, 591.21 and 358.07

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Solution

The fourth proportional to 395.00, 591.21 and 358.07 is: 535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.00 : 591.21 = 358.07 : x
  2. Step 2: Convert to fraction form
    395.00/591.21 = 358.07/x
  3. Step 3: Cross multiply
    395.00x = 591.21 × 358.07
  4. Step 4: Simplify right side
    395.00x = 211,691.61
  5. Step 5: Solve for x
    x = 211,691.61/395.00
  6. Step 6: Final answer
    x = 535.93

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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.