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Finding the Fourth Proportional to 391.83, 588.03 and 175.35

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Solution

The fourth proportional to 391.83, 588.03 and 175.35 is: 263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    391.83 : 588.03 = 175.35 : x
  2. Step 2: Convert to fraction form
    391.83/588.03 = 175.35/x
  3. Step 3: Cross multiply
    391.83x = 588.03 × 175.35
  4. Step 4: Simplify right side
    391.83x = 103,111.06
  5. Step 5: Solve for x
    x = 103,111.06/391.83
  6. Step 6: Final answer
    x = 263.15

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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.