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Finding the Fourth Proportional to 169,234.72, 253,859.09 and 139,597.36

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Solution

The fourth proportional to 169,234.72, 253,859.09 and 139,597.36 is: 209,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,234.72 : 253,859.09 = 139,597.36 : x
  2. Step 2: Convert to fraction form
    169,234.72/253,859.09 = 139,597.36/x
  3. Step 3: Cross multiply
    169,234.72x = 253,859.09 × 139,597.36
  4. Step 4: Simplify right side
    169,234.72x = 35,438,058,776.00
  5. Step 5: Solve for x
    x = 35,438,058,776.00/169,234.72
  6. Step 6: Final answer
    x = 209,401.82

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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.