Home / 215,905.40-323,858.10-201,908.60

Finding the Fourth Proportional to 215,905.40, 323,858.10 and 201,908.60

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Solution

The fourth proportional to 215,905.40, 323,858.10 and 201,908.60 is: 302,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,905.40 : 323,858.10 = 201,908.60 : x
  2. Step 2: Convert to fraction form
    215,905.40/323,858.10 = 201,908.60/x
  3. Step 3: Cross multiply
    215,905.40x = 323,858.10 × 201,908.60
  4. Step 4: Simplify right side
    215,905.40x = 65,389,735,569.66
  5. Step 5: Solve for x
    x = 65,389,735,569.66/215,905.40
  6. Step 6: Final answer
    x = 302,862.90

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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.