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Finding the Fourth Proportional to 439.56, 656.23 and 362.68

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Solution

The fourth proportional to 439.56, 656.23 and 362.68 is: 541.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.56 : 656.23 = 362.68 : x
  2. Step 2: Convert to fraction form
    439.56/656.23 = 362.68/x
  3. Step 3: Cross multiply
    439.56x = 656.23 × 362.68
  4. Step 4: Simplify right side
    439.56x = 238,001.50
  5. Step 5: Solve for x
    x = 238,001.50/439.56
  6. Step 6: Final answer
    x = 541.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.