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Finding the Fourth Proportional to 440.48, 607.84 and 243.99

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Solution

The fourth proportional to 440.48, 607.84 and 243.99 is: 336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.48 : 607.84 = 243.99 : x
  2. Step 2: Convert to fraction form
    440.48/607.84 = 243.99/x
  3. Step 3: Cross multiply
    440.48x = 607.84 × 243.99
  4. Step 4: Simplify right side
    440.48x = 148,306.27
  5. Step 5: Solve for x
    x = 148,306.27/440.48
  6. Step 6: Final answer
    x = 336.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.