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Finding the Fourth Proportional to 252,981.54, 349,100.78 and 139,797

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Solution

The fourth proportional to 252,981.54, 349,100.78 and 139,797 is: 192,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,981.54 : 349,100.78 = 139,797 : x
  2. Step 2: Convert to fraction form
    252,981.54/349,100.78 = 139,797/x
  3. Step 3: Cross multiply
    252,981.54x = 349,100.78 × 139,797
  4. Step 4: Simplify right side
    252,981.54x = 48,803,241,741.66
  5. Step 5: Solve for x
    x = 48,803,241,741.66/252,981.54
  6. Step 6: Final answer
    x = 192,912.26

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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.