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Finding the Fourth Proportional to 615.81, 923.18 and 499.96

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Solution

The fourth proportional to 615.81, 923.18 and 499.96 is: 749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.81 : 923.18 = 499.96 : x
  2. Step 2: Convert to fraction form
    615.81/923.18 = 499.96/x
  3. Step 3: Cross multiply
    615.81x = 923.18 × 499.96
  4. Step 4: Simplify right side
    615.81x = 461,548.46
  5. Step 5: Solve for x
    x = 461,548.46/615.81
  6. Step 6: Final answer
    x = 749.50

Related Problems

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Double scale
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Similar ratio
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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.