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Finding the Fourth Proportional to 555.49, 833.30 and 165.50

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Solution

The fourth proportional to 555.49, 833.30 and 165.50 is: 248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.49 : 833.30 = 165.50 : x
  2. Step 2: Convert to fraction form
    555.49/833.30 = 165.50/x
  3. Step 3: Cross multiply
    555.49x = 833.30 × 165.50
  4. Step 4: Simplify right side
    555.49x = 137,909.90
  5. Step 5: Solve for x
    x = 137,909.90/555.49
  6. Step 6: Final answer
    x = 248.27

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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.