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Finding the Fourth Proportional to 350.50, 483.96 and 277.20

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Solution

The fourth proportional to 350.50, 483.96 and 277.20 is: 382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.50 : 483.96 = 277.20 : x
  2. Step 2: Convert to fraction form
    350.50/483.96 = 277.20/x
  3. Step 3: Cross multiply
    350.50x = 483.96 × 277.20
  4. Step 4: Simplify right side
    350.50x = 134,153.71
  5. Step 5: Solve for x
    x = 134,153.71/350.50
  6. Step 6: Final answer
    x = 382.75

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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.