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Finding the Fourth Proportional to 615.40, 923.07 and 250.18

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Solution

The fourth proportional to 615.40, 923.07 and 250.18 is: 375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.40 : 923.07 = 250.18 : x
  2. Step 2: Convert to fraction form
    615.40/923.07 = 250.18/x
  3. Step 3: Cross multiply
    615.40x = 923.07 × 250.18
  4. Step 4: Simplify right side
    615.40x = 230,933.65
  5. Step 5: Solve for x
    x = 230,933.65/615.40
  6. Step 6: Final answer
    x = 375.26

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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.