Home / 253,976.89-380,631.06-141,709.96

Finding the Fourth Proportional to 253,976.89, 380,631.06 and 141,709.96

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Solution

The fourth proportional to 253,976.89, 380,631.06 and 141,709.96 is: 212,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,976.89 : 380,631.06 = 141,709.96 : x
  2. Step 2: Convert to fraction form
    253,976.89/380,631.06 = 141,709.96/x
  3. Step 3: Cross multiply
    253,976.89x = 380,631.06 × 141,709.96
  4. Step 4: Simplify right side
    253,976.89x = 53,939,212,287.36
  5. Step 5: Solve for x
    x = 53,939,212,287.36/253,976.89
  6. Step 6: Final answer
    x = 212,378.43

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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.