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Finding the Fourth Proportional to 616.37, 924.65 and 205.61

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Solution

The fourth proportional to 616.37, 924.65 and 205.61 is: 308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.37 : 924.65 = 205.61 : x
  2. Step 2: Convert to fraction form
    616.37/924.65 = 205.61/x
  3. Step 3: Cross multiply
    616.37x = 924.65 × 205.61
  4. Step 4: Simplify right side
    616.37x = 190,113.18
  5. Step 5: Solve for x
    x = 190,113.18/616.37
  6. Step 6: Final answer
    x = 308.44

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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.