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Finding the Fourth Proportional to 357.70, 496.15 and 348.22

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Solution

The fourth proportional to 357.70, 496.15 and 348.22 is: 483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.70 : 496.15 = 348.22 : x
  2. Step 2: Convert to fraction form
    357.70/496.15 = 348.22/x
  3. Step 3: Cross multiply
    357.70x = 496.15 × 348.22
  4. Step 4: Simplify right side
    357.70x = 172,769.35
  5. Step 5: Solve for x
    x = 172,769.35/357.70
  6. Step 6: Final answer
    x = 483.00

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.