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Finding the Fourth Proportional to 550.99, 760.28 and 302.25

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Solution

The fourth proportional to 550.99, 760.28 and 302.25 is: 417.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.99 : 760.28 = 302.25 : x
  2. Step 2: Convert to fraction form
    550.99/760.28 = 302.25/x
  3. Step 3: Cross multiply
    550.99x = 760.28 × 302.25
  4. Step 4: Simplify right side
    550.99x = 229,794.63
  5. Step 5: Solve for x
    x = 229,794.63/550.99
  6. Step 6: Final answer
    x = 417.06

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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.