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Finding the Fourth Proportional to 350.87, 483.06 and 307.17

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Solution

The fourth proportional to 350.87, 483.06 and 307.17 is: 422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.87 : 483.06 = 307.17 : x
  2. Step 2: Convert to fraction form
    350.87/483.06 = 307.17/x
  3. Step 3: Cross multiply
    350.87x = 483.06 × 307.17
  4. Step 4: Simplify right side
    350.87x = 148,381.54
  5. Step 5: Solve for x
    x = 148,381.54/350.87
  6. Step 6: Final answer
    x = 422.90

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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.