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Finding the Fourth Proportional to 201,902.40, 302,513.40 and 159,620.40

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Solution

The fourth proportional to 201,902.40, 302,513.40 and 159,620.40 is: 239,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,902.40 : 302,513.40 = 159,620.40 : x
  2. Step 2: Convert to fraction form
    201,902.40/302,513.40 = 159,620.40/x
  3. Step 3: Cross multiply
    201,902.40x = 302,513.40 × 159,620.40
  4. Step 4: Simplify right side
    201,902.40x = 48,287,309,913.36
  5. Step 5: Solve for x
    x = 48,287,309,913.36/201,902.40
  6. Step 6: Final answer
    x = 239,161.64

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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.