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Finding the Fourth Proportional to 350.02, 483.15 and 280.36

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Solution

The fourth proportional to 350.02, 483.15 and 280.36 is: 386.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.02 : 483.15 = 280.36 : x
  2. Step 2: Convert to fraction form
    350.02/483.15 = 280.36/x
  3. Step 3: Cross multiply
    350.02x = 483.15 × 280.36
  4. Step 4: Simplify right side
    350.02x = 135,455.93
  5. Step 5: Solve for x
    x = 135,455.93/350.02
  6. Step 6: Final answer
    x = 386.99

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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.