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Finding the Fourth Proportional to 252,630.06, 348,628.77 and 139,452

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Solution

The fourth proportional to 252,630.06, 348,628.77 and 139,452 is: 192,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,630.06 : 348,628.77 = 139,452 : x
  2. Step 2: Convert to fraction form
    252,630.06/348,628.77 = 139,452/x
  3. Step 3: Cross multiply
    252,630.06x = 348,628.77 × 139,452
  4. Step 4: Simplify right side
    252,630.06x = 48,616,979,234.04
  5. Step 5: Solve for x
    x = 48,616,979,234.04/252,630.06
  6. Step 6: Final answer
    x = 192,443.37

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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.