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Finding the Fourth Proportional to 216,625.80, 324,063.90 and 187,368.60

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Solution

The fourth proportional to 216,625.80, 324,063.90 and 187,368.60 is: 280,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,625.80 : 324,063.90 = 187,368.60 : x
  2. Step 2: Convert to fraction form
    216,625.80/324,063.90 = 187,368.60/x
  3. Step 3: Cross multiply
    216,625.80x = 324,063.90 × 187,368.60
  4. Step 4: Simplify right side
    216,625.80x = 60,719,399,253.54
  5. Step 5: Solve for x
    x = 60,719,399,253.54/216,625.80
  6. Step 6: Final answer
    x = 280,296.25

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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.