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Finding the Fourth Proportional to 358.56, 540.54 and 347.22

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Solution

The fourth proportional to 358.56, 540.54 and 347.22 is: 523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.56 : 540.54 = 347.22 : x
  2. Step 2: Convert to fraction form
    358.56/540.54 = 347.22/x
  3. Step 3: Cross multiply
    358.56x = 540.54 × 347.22
  4. Step 4: Simplify right side
    358.56x = 187,686.30
  5. Step 5: Solve for x
    x = 187,686.30/358.56
  6. Step 6: Final answer
    x = 523.44

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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.