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Finding the Fourth Proportional to 473.76, 710.74 and 165.59

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Solution

The fourth proportional to 473.76, 710.74 and 165.59 is: 248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.76 : 710.74 = 165.59 : x
  2. Step 2: Convert to fraction form
    473.76/710.74 = 165.59/x
  3. Step 3: Cross multiply
    473.76x = 710.74 × 165.59
  4. Step 4: Simplify right side
    473.76x = 117,690.76
  5. Step 5: Solve for x
    x = 117,690.76/473.76
  6. Step 6: Final answer
    x = 248.42

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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.