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Finding the Fourth Proportional to 551.07, 760.37 and 330.08

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Solution

The fourth proportional to 551.07, 760.37 and 330.08 is: 455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.07 : 760.37 = 330.08 : x
  2. Step 2: Convert to fraction form
    551.07/760.37 = 330.08/x
  3. Step 3: Cross multiply
    551.07x = 760.37 × 330.08
  4. Step 4: Simplify right side
    551.07x = 250,977.48
  5. Step 5: Solve for x
    x = 250,977.48/551.07
  6. Step 6: Final answer
    x = 455.44

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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.