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Finding the Fourth Proportional to 252,652.88, 348,651.82 and 139,473.20

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Solution

The fourth proportional to 252,652.88, 348,651.82 and 139,473.20 is: 192,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,652.88 : 348,651.82 = 139,473.20 : x
  2. Step 2: Convert to fraction form
    252,652.88/348,651.82 = 139,473.20/x
  3. Step 3: Cross multiply
    252,652.88x = 348,651.82 × 139,473.20
  4. Step 4: Simplify right side
    252,652.88x = 48,627,585,021.22
  5. Step 5: Solve for x
    x = 48,627,585,021.22/252,652.88
  6. Step 6: Final answer
    x = 192,467.96

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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.