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Finding the Fourth Proportional to 359.20, 541.10 and 310.60

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Solution

The fourth proportional to 359.20, 541.10 and 310.60 is: 467.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.20 : 541.10 = 310.60 : x
  2. Step 2: Convert to fraction form
    359.20/541.10 = 310.60/x
  3. Step 3: Cross multiply
    359.20x = 541.10 × 310.60
  4. Step 4: Simplify right side
    359.20x = 168,065.66
  5. Step 5: Solve for x
    x = 168,065.66/359.20
  6. Step 6: Final answer
    x = 467.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.