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Finding the Fourth Proportional to 440.40, 607.80 and 265.84

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Solution

The fourth proportional to 440.40, 607.80 and 265.84 is: 366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.40 : 607.80 = 265.84 : x
  2. Step 2: Convert to fraction form
    440.40/607.80 = 265.84/x
  3. Step 3: Cross multiply
    440.40x = 607.80 × 265.84
  4. Step 4: Simplify right side
    440.40x = 161,577.55
  5. Step 5: Solve for x
    x = 161,577.55/440.40
  6. Step 6: Final answer
    x = 366.89

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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.