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Finding the Fourth Proportional to 252,239, 348,092.18 and 139,065.80

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Solution

The fourth proportional to 252,239, 348,092.18 and 139,065.80 is: 191,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,239 : 348,092.18 = 139,065.80 : x
  2. Step 2: Convert to fraction form
    252,239/348,092.18 = 139,065.80/x
  3. Step 3: Cross multiply
    252,239x = 348,092.18 × 139,065.80
  4. Step 4: Simplify right side
    252,239x = 48,407,717,485.44
  5. Step 5: Solve for x
    x = 48,407,717,485.44/252,239
  6. Step 6: Final answer
    x = 191,912.11

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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.