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Finding the Fourth Proportional to 389.04, 537.12 and 350.88

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Solution

The fourth proportional to 389.04, 537.12 and 350.88 is: 484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389.04 : 537.12 = 350.88 : x
  2. Step 2: Convert to fraction form
    389.04/537.12 = 350.88/x
  3. Step 3: Cross multiply
    389.04x = 537.12 × 350.88
  4. Step 4: Simplify right side
    389.04x = 188,464.67
  5. Step 5: Solve for x
    x = 188,464.67/389.04
  6. Step 6: Final answer
    x = 484.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.