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Finding the Fourth Proportional to 252,627.06, 348,624.63 and 139,449

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Solution

The fourth proportional to 252,627.06, 348,624.63 and 139,449 is: 192,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,627.06 : 348,624.63 = 139,449 : x
  2. Step 2: Convert to fraction form
    252,627.06/348,624.63 = 139,449/x
  3. Step 3: Cross multiply
    252,627.06x = 348,624.63 × 139,449
  4. Step 4: Simplify right side
    252,627.06x = 48,615,356,028.87
  5. Step 5: Solve for x
    x = 48,615,356,028.87/252,627.06
  6. Step 6: Final answer
    x = 192,439.23

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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.