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Finding the Fourth Proportional to 624.06, 861.23 and 362.16

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Solution

The fourth proportional to 624.06, 861.23 and 362.16 is: 499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.06 : 861.23 = 362.16 : x
  2. Step 2: Convert to fraction form
    624.06/861.23 = 362.16/x
  3. Step 3: Cross multiply
    624.06x = 861.23 × 362.16
  4. Step 4: Simplify right side
    624.06x = 311,903.96
  5. Step 5: Solve for x
    x = 311,903.96/624.06
  6. Step 6: Final answer
    x = 499.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.