Home / 252,438.78-348,359.91-139,261.50

Finding the Fourth Proportional to 252,438.78, 348,359.91 and 139,261.50

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Solution

The fourth proportional to 252,438.78, 348,359.91 and 139,261.50 is: 192,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,438.78 : 348,359.91 = 139,261.50 : x
  2. Step 2: Convert to fraction form
    252,438.78/348,359.91 = 139,261.50/x
  3. Step 3: Cross multiply
    252,438.78x = 348,359.91 × 139,261.50
  4. Step 4: Simplify right side
    252,438.78x = 48,513,123,606.47
  5. Step 5: Solve for x
    x = 48,513,123,606.47/252,438.78
  6. Step 6: Final answer
    x = 192,177.78

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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.