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Finding the Fourth Proportional to 612.07, 918.25 and 201.24

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Solution

The fourth proportional to 612.07, 918.25 and 201.24 is: 301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.07 : 918.25 = 201.24 : x
  2. Step 2: Convert to fraction form
    612.07/918.25 = 201.24/x
  3. Step 3: Cross multiply
    612.07x = 918.25 × 201.24
  4. Step 4: Simplify right side
    612.07x = 184,788.63
  5. Step 5: Solve for x
    x = 184,788.63/612.07
  6. Step 6: Final answer
    x = 301.91

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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.