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Finding the Fourth Proportional to 338.80, 507.12 and 176.26

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Solution

The fourth proportional to 338.80, 507.12 and 176.26 is: 263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.80 : 507.12 = 176.26 : x
  2. Step 2: Convert to fraction form
    338.80/507.12 = 176.26/x
  3. Step 3: Cross multiply
    338.80x = 507.12 × 176.26
  4. Step 4: Simplify right side
    338.80x = 89,384.97
  5. Step 5: Solve for x
    x = 89,384.97/338.80
  6. Step 6: Final answer
    x = 263.83

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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.