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Finding the Fourth Proportional to 615.43, 923.04 and 204.49

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Solution

The fourth proportional to 615.43, 923.04 and 204.49 is: 306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.43 : 923.04 = 204.49 : x
  2. Step 2: Convert to fraction form
    615.43/923.04 = 204.49/x
  3. Step 3: Cross multiply
    615.43x = 923.04 × 204.49
  4. Step 4: Simplify right side
    615.43x = 188,752.45
  5. Step 5: Solve for x
    x = 188,752.45/615.43
  6. Step 6: Final answer
    x = 306.70

Related Problems

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Half scale
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Double scale
Find fourth proportional to 616.43, 924.54 and 205.49
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.