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Finding the Fourth Proportional to 612.14, 918.02 and 201.05

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Solution

The fourth proportional to 612.14, 918.02 and 201.05 is: 301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.14 : 918.02 = 201.05 : x
  2. Step 2: Convert to fraction form
    612.14/918.02 = 201.05/x
  3. Step 3: Cross multiply
    612.14x = 918.02 × 201.05
  4. Step 4: Simplify right side
    612.14x = 184,566.92
  5. Step 5: Solve for x
    x = 184,566.92/612.14
  6. Step 6: Final answer
    x = 301.51

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.