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Finding the Fourth Proportional to 440.28, 607.48 and 265.59

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Solution

The fourth proportional to 440.28, 607.48 and 265.59 is: 366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.28 : 607.48 = 265.59 : x
  2. Step 2: Convert to fraction form
    440.28/607.48 = 265.59/x
  3. Step 3: Cross multiply
    440.28x = 607.48 × 265.59
  4. Step 4: Simplify right side
    440.28x = 161,340.61
  5. Step 5: Solve for x
    x = 161,340.61/440.28
  6. Step 6: Final answer
    x = 366.45

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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.