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Finding the Fourth Proportional to 201,502.29, 302,189.04 and 66,541.21

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Solution

The fourth proportional to 201,502.29, 302,189.04 and 66,541.21 is: 99,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,502.29 : 302,189.04 = 66,541.21 : x
  2. Step 2: Convert to fraction form
    201,502.29/302,189.04 = 66,541.21/x
  3. Step 3: Cross multiply
    201,502.29x = 302,189.04 × 66,541.21
  4. Step 4: Simplify right side
    201,502.29x = 20,108,023,614.87
  5. Step 5: Solve for x
    x = 20,108,023,614.87/201,502.29
  6. Step 6: Final answer
    x = 99,790.54

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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.