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Finding the Fourth Proportional to 307,247.72, 424,027.11 and 169,453.61

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Solution

The fourth proportional to 307,247.72, 424,027.11 and 169,453.61 is: 233,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,247.72 : 424,027.11 = 169,453.61 : x
  2. Step 2: Convert to fraction form
    307,247.72/424,027.11 = 169,453.61/x
  3. Step 3: Cross multiply
    307,247.72x = 424,027.11 × 169,453.61
  4. Step 4: Simplify right side
    307,247.72x = 71,852,922,407.23
  5. Step 5: Solve for x
    x = 71,852,922,407.23/307,247.72
  6. Step 6: Final answer
    x = 233,859.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.