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Finding the Fourth Proportional to 614.07, 920.99 and 181.13

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Solution

The fourth proportional to 614.07, 920.99 and 181.13 is: 271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.07 : 920.99 = 181.13 : x
  2. Step 2: Convert to fraction form
    614.07/920.99 = 181.13/x
  3. Step 3: Cross multiply
    614.07x = 920.99 × 181.13
  4. Step 4: Simplify right side
    614.07x = 166,814.77
  5. Step 5: Solve for x
    x = 166,814.77/614.07
  6. Step 6: Final answer
    x = 271.65

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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.