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Finding the Fourth Proportional to 252,790.68, 348,849 and 139,611

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Solution

The fourth proportional to 252,790.68, 348,849 and 139,611 is: 192,662.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,790.68 : 348,849 = 139,611 : x
  2. Step 2: Convert to fraction form
    252,790.68/348,849 = 139,611/x
  3. Step 3: Cross multiply
    252,790.68x = 348,849 × 139,611
  4. Step 4: Simplify right side
    252,790.68x = 48,703,157,739
  5. Step 5: Solve for x
    x = 48,703,157,739/252,790.68
  6. Step 6: Final answer
    x = 192,662.00

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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.