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Finding the Fourth Proportional to 379.10, 525.58 and 365.73

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Solution

The fourth proportional to 379.10, 525.58 and 365.73 is: 507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.10 : 525.58 = 365.73 : x
  2. Step 2: Convert to fraction form
    379.10/525.58 = 365.73/x
  3. Step 3: Cross multiply
    379.10x = 525.58 × 365.73
  4. Step 4: Simplify right side
    379.10x = 192,220.37
  5. Step 5: Solve for x
    x = 192,220.37/379.10
  6. Step 6: Final answer
    x = 507.04

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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.