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Finding the Fourth Proportional to 1,230.35, 1,845.73 and 614.08

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Solution

The fourth proportional to 1,230.35, 1,845.73 and 614.08 is: 921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.35 : 1,845.73 = 614.08 : x
  2. Step 2: Convert to fraction form
    1,230.35/1,845.73 = 614.08/x
  3. Step 3: Cross multiply
    1,230.35x = 1,845.73 × 614.08
  4. Step 4: Simplify right side
    1,230.35x = 1,133,425.88
  5. Step 5: Solve for x
    x = 1,133,425.88/1,230.35
  6. Step 6: Final answer
    x = 921.22

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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.