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Finding the Fourth Proportional to 201,622.91, 302,502.42 and 89,287.65

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Solution

The fourth proportional to 201,622.91, 302,502.42 and 89,287.65 is: 133,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,622.91 : 302,502.42 = 89,287.65 : x
  2. Step 2: Convert to fraction form
    201,622.91/302,502.42 = 89,287.65/x
  3. Step 3: Cross multiply
    201,622.91x = 302,502.42 × 89,287.65
  4. Step 4: Simplify right side
    201,622.91x = 27,009,730,201.11
  5. Step 5: Solve for x
    x = 27,009,730,201.11/201,622.91
  6. Step 6: Final answer
    x = 133,961.62

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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.