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Finding the Fourth Proportional to 615.37, 923.06 and 204.40

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Solution

The fourth proportional to 615.37, 923.06 and 204.40 is: 306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.37 : 923.06 = 204.40 : x
  2. Step 2: Convert to fraction form
    615.37/923.06 = 204.40/x
  3. Step 3: Cross multiply
    615.37x = 923.06 × 204.40
  4. Step 4: Simplify right side
    615.37x = 188,673.46
  5. Step 5: Solve for x
    x = 188,673.46/615.37
  6. Step 6: Final answer
    x = 306.60

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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.