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Finding the Fourth Proportional to 239,847, 331,027.74 and 139,303.32

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Solution

The fourth proportional to 239,847, 331,027.74 and 139,303.32 is: 192,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,847 : 331,027.74 = 139,303.32 : x
  2. Step 2: Convert to fraction form
    239,847/331,027.74 = 139,303.32/x
  3. Step 3: Cross multiply
    239,847x = 331,027.74 × 139,303.32
  4. Step 4: Simplify right side
    239,847x = 46,113,263,194.10
  5. Step 5: Solve for x
    x = 46,113,263,194.10/239,847
  6. Step 6: Final answer
    x = 192,261.16

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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.