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Finding the Fourth Proportional to 252,181.92, 348,027.24 and 139,015.20

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Solution

The fourth proportional to 252,181.92, 348,027.24 and 139,015.20 is: 191,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,181.92 : 348,027.24 = 139,015.20 : x
  2. Step 2: Convert to fraction form
    252,181.92/348,027.24 = 139,015.20/x
  3. Step 3: Cross multiply
    252,181.92x = 348,027.24 × 139,015.20
  4. Step 4: Simplify right side
    252,181.92x = 48,381,076,374.05
  5. Step 5: Solve for x
    x = 48,381,076,374.05/252,181.92
  6. Step 6: Final answer
    x = 191,849.90

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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.