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Finding the Fourth Proportional to 555.64, 833.56 and 165.60

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Solution

The fourth proportional to 555.64, 833.56 and 165.60 is: 248.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.64 : 833.56 = 165.60 : x
  2. Step 2: Convert to fraction form
    555.64/833.56 = 165.60/x
  3. Step 3: Cross multiply
    555.64x = 833.56 × 165.60
  4. Step 4: Simplify right side
    555.64x = 138,037.12
  5. Step 5: Solve for x
    x = 138,037.12/555.64
  6. Step 6: Final answer
    x = 248.43

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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.