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Finding the Fourth Proportional to 624.16, 861.48 and 362.32

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Solution

The fourth proportional to 624.16, 861.48 and 362.32 is: 500.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.16 : 861.48 = 362.32 : x
  2. Step 2: Convert to fraction form
    624.16/861.48 = 362.32/x
  3. Step 3: Cross multiply
    624.16x = 861.48 × 362.32
  4. Step 4: Simplify right side
    624.16x = 312,131.43
  5. Step 5: Solve for x
    x = 312,131.43/624.16
  6. Step 6: Final answer
    x = 500.08

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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.