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Finding the Fourth Proportional to 580.58, 801.26 and 331.91

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Solution

The fourth proportional to 580.58, 801.26 and 331.91 is: 458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.58 : 801.26 = 331.91 : x
  2. Step 2: Convert to fraction form
    580.58/801.26 = 331.91/x
  3. Step 3: Cross multiply
    580.58x = 801.26 × 331.91
  4. Step 4: Simplify right side
    580.58x = 265,943.03
  5. Step 5: Solve for x
    x = 265,943.03/580.58
  6. Step 6: Final answer
    x = 458.07

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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.