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Finding the Fourth Proportional to 440.80, 607.54 and 293.17

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Solution

The fourth proportional to 440.80, 607.54 and 293.17 is: 404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.80 : 607.54 = 293.17 : x
  2. Step 2: Convert to fraction form
    440.80/607.54 = 293.17/x
  3. Step 3: Cross multiply
    440.80x = 607.54 × 293.17
  4. Step 4: Simplify right side
    440.80x = 178,112.50
  5. Step 5: Solve for x
    x = 178,112.50/440.80
  6. Step 6: Final answer
    x = 404.07

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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.