Home / 270,946.86-406,438.92-81,399.30

Finding the Fourth Proportional to 270,946.86, 406,438.92 and 81,399.30

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Solution

The fourth proportional to 270,946.86, 406,438.92 and 81,399.30 is: 122,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,946.86 : 406,438.92 = 81,399.30 : x
  2. Step 2: Convert to fraction form
    270,946.86/406,438.92 = 81,399.30/x
  3. Step 3: Cross multiply
    270,946.86x = 406,438.92 × 81,399.30
  4. Step 4: Simplify right side
    270,946.86x = 33,083,843,580.76
  5. Step 5: Solve for x
    x = 33,083,843,580.76/270,946.86
  6. Step 6: Final answer
    x = 122,104.55

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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.