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Finding the Fourth Proportional to 615.81, 923.89 and 204.94

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Solution

The fourth proportional to 615.81, 923.89 and 204.94 is: 307.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.81 : 923.89 = 204.94 : x
  2. Step 2: Convert to fraction form
    615.81/923.89 = 204.94/x
  3. Step 3: Cross multiply
    615.81x = 923.89 × 204.94
  4. Step 4: Simplify right side
    615.81x = 189,342.02
  5. Step 5: Solve for x
    x = 189,342.02/615.81
  6. Step 6: Final answer
    x = 307.47

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.