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Finding the Fourth Proportional to 473.89, 710.72 and 181.28

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Solution

The fourth proportional to 473.89, 710.72 and 181.28 is: 271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.89 : 710.72 = 181.28 : x
  2. Step 2: Convert to fraction form
    473.89/710.72 = 181.28/x
  3. Step 3: Cross multiply
    473.89x = 710.72 × 181.28
  4. Step 4: Simplify right side
    473.89x = 128,838.87
  5. Step 5: Solve for x
    x = 128,838.87/473.89
  6. Step 6: Final answer
    x = 271.88

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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.