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Finding the Fourth Proportional to 614.99, 921.82 and 203.83

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Solution

The fourth proportional to 614.99, 921.82 and 203.83 is: 305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.99 : 921.82 = 203.83 : x
  2. Step 2: Convert to fraction form
    614.99/921.82 = 203.83/x
  3. Step 3: Cross multiply
    614.99x = 921.82 × 203.83
  4. Step 4: Simplify right side
    614.99x = 187,894.57
  5. Step 5: Solve for x
    x = 187,894.57/614.99
  6. Step 6: Final answer
    x = 305.52

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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.