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Finding the Fourth Proportional to 555.81, 833.46 and 165.66

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Solution

The fourth proportional to 555.81, 833.46 and 165.66 is: 248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.81 : 833.46 = 165.66 : x
  2. Step 2: Convert to fraction form
    555.81/833.46 = 165.66/x
  3. Step 3: Cross multiply
    555.81x = 833.46 × 165.66
  4. Step 4: Simplify right side
    555.81x = 138,071.93
  5. Step 5: Solve for x
    x = 138,071.93/555.81
  6. Step 6: Final answer
    x = 248.41

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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.