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Finding the Fourth Proportional to 612.06, 918.10 and 179.22

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Solution

The fourth proportional to 612.06, 918.10 and 179.22 is: 268.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.06 : 918.10 = 179.22 : x
  2. Step 2: Convert to fraction form
    612.06/918.10 = 179.22/x
  3. Step 3: Cross multiply
    612.06x = 918.10 × 179.22
  4. Step 4: Simplify right side
    612.06x = 164,541.88
  5. Step 5: Solve for x
    x = 164,541.88/612.06
  6. Step 6: Final answer
    x = 268.83

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Double scale
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Similar ratio
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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.