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Finding the Fourth Proportional to 624.50, 861.82 and 362.60

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Solution

The fourth proportional to 624.50, 861.82 and 362.60 is: 500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.50 : 861.82 = 362.60 : x
  2. Step 2: Convert to fraction form
    624.50/861.82 = 362.60/x
  3. Step 3: Cross multiply
    624.50x = 861.82 × 362.60
  4. Step 4: Simplify right side
    624.50x = 312,495.93
  5. Step 5: Solve for x
    x = 312,495.93/624.50
  6. Step 6: Final answer
    x = 500.39

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1.5x scale

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.