Home / 252,439.78-348,361.29-139,262.50

Finding the Fourth Proportional to 252,439.78, 348,361.29 and 139,262.50

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Solution

The fourth proportional to 252,439.78, 348,361.29 and 139,262.50 is: 192,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,439.78 : 348,361.29 = 139,262.50 : x
  2. Step 2: Convert to fraction form
    252,439.78/348,361.29 = 139,262.50/x
  3. Step 3: Cross multiply
    252,439.78x = 348,361.29 × 139,262.50
  4. Step 4: Simplify right side
    252,439.78x = 48,513,664,148.63
  5. Step 5: Solve for x
    x = 48,513,664,148.63/252,439.78
  6. Step 6: Final answer
    x = 192,179.16

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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.