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Finding the Fourth Proportional to 555.25, 831.75 and 335.74

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Solution

The fourth proportional to 555.25, 831.75 and 335.74 is: 502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.25 : 831.75 = 335.74 : x
  2. Step 2: Convert to fraction form
    555.25/831.75 = 335.74/x
  3. Step 3: Cross multiply
    555.25x = 831.75 × 335.74
  4. Step 4: Simplify right side
    555.25x = 279,251.75
  5. Step 5: Solve for x
    x = 279,251.75/555.25
  6. Step 6: Final answer
    x = 502.93

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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.