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Finding the Fourth Proportional to 350.72, 483.88 and 203.32

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Solution

The fourth proportional to 350.72, 483.88 and 203.32 is: 280.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.72 : 483.88 = 203.32 : x
  2. Step 2: Convert to fraction form
    350.72/483.88 = 203.32/x
  3. Step 3: Cross multiply
    350.72x = 483.88 × 203.32
  4. Step 4: Simplify right side
    350.72x = 98,382.48
  5. Step 5: Solve for x
    x = 98,382.48/350.72
  6. Step 6: Final answer
    x = 280.52

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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.