Home / 252,401.81-378,286.97-126,077.31

Finding the Fourth Proportional to 252,401.81, 378,286.97 and 126,077.31

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Solution

The fourth proportional to 252,401.81, 378,286.97 and 126,077.31 is: 188,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,401.81 : 378,286.97 = 126,077.31 : x
  2. Step 2: Convert to fraction form
    252,401.81/378,286.97 = 126,077.31/x
  3. Step 3: Cross multiply
    252,401.81x = 378,286.97 × 126,077.31
  4. Step 4: Simplify right side
    252,401.81x = 47,693,402,955.26
  5. Step 5: Solve for x
    x = 47,693,402,955.26/252,401.81
  6. Step 6: Final answer
    x = 188,958.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.