Home / 215,945.40-323,918.10-202,812.60

Finding the Fourth Proportional to 215,945.40, 323,918.10 and 202,812.60

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Solution

The fourth proportional to 215,945.40, 323,918.10 and 202,812.60 is: 304,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,945.40 : 323,918.10 = 202,812.60 : x
  2. Step 2: Convert to fraction form
    215,945.40/323,918.10 = 202,812.60/x
  3. Step 3: Cross multiply
    215,945.40x = 323,918.10 × 202,812.60
  4. Step 4: Simplify right side
    215,945.40x = 65,694,672,048.06
  5. Step 5: Solve for x
    x = 65,694,672,048.06/215,945.40
  6. Step 6: Final answer
    x = 304,218.90

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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.