Home / 253,760.40-380,365.92-165,077.28

Finding the Fourth Proportional to 253,760.40, 380,365.92 and 165,077.28

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Solution

The fourth proportional to 253,760.40, 380,365.92 and 165,077.28 is: 247,437.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,760.40 : 380,365.92 = 165,077.28 : x
  2. Step 2: Convert to fraction form
    253,760.40/380,365.92 = 165,077.28/x
  3. Step 3: Cross multiply
    253,760.40x = 380,365.92 × 165,077.28
  4. Step 4: Simplify right side
    253,760.40x = 62,789,771,478.30
  5. Step 5: Solve for x
    x = 62,789,771,478.30/253,760.40
  6. Step 6: Final answer
    x = 247,437.23

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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.