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Finding the Fourth Proportional to 380.40, 570.84 and 175.08

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Solution

The fourth proportional to 380.40, 570.84 and 175.08 is: 262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.40 : 570.84 = 175.08 : x
  2. Step 2: Convert to fraction form
    380.40/570.84 = 175.08/x
  3. Step 3: Cross multiply
    380.40x = 570.84 × 175.08
  4. Step 4: Simplify right side
    380.40x = 99,942.67
  5. Step 5: Solve for x
    x = 99,942.67/380.40
  6. Step 6: Final answer
    x = 262.73

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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.