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Finding the Fourth Proportional to 440.59, 660.37 and 245.54

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Solution

The fourth proportional to 440.59, 660.37 and 245.54 is: 368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.59 : 660.37 = 245.54 : x
  2. Step 2: Convert to fraction form
    440.59/660.37 = 245.54/x
  3. Step 3: Cross multiply
    440.59x = 660.37 × 245.54
  4. Step 4: Simplify right side
    440.59x = 162,146.02
  5. Step 5: Solve for x
    x = 162,146.02/440.59
  6. Step 6: Final answer
    x = 368.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.