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Finding the Fourth Proportional to 441,243.54, 661,404.51 and 216,292.50

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Solution

The fourth proportional to 441,243.54, 661,404.51 and 216,292.50 is: 324,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,243.54 : 661,404.51 = 216,292.50 : x
  2. Step 2: Convert to fraction form
    441,243.54/661,404.51 = 216,292.50/x
  3. Step 3: Cross multiply
    441,243.54x = 661,404.51 × 216,292.50
  4. Step 4: Simplify right side
    441,243.54x = 143,056,834,979.18
  5. Step 5: Solve for x
    x = 143,056,834,979.18/441,243.54
  6. Step 6: Final answer
    x = 324,212.87

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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.