Home / 325,224.40-487,981.44-206,865.04

Finding the Fourth Proportional to 325,224.40, 487,981.44 and 206,865.04

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Solution

The fourth proportional to 325,224.40, 487,981.44 and 206,865.04 is: 310,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,224.40 : 487,981.44 = 206,865.04 : x
  2. Step 2: Convert to fraction form
    325,224.40/487,981.44 = 206,865.04/x
  3. Step 3: Cross multiply
    325,224.40x = 487,981.44 × 206,865.04
  4. Step 4: Simplify right side
    325,224.40x = 100,946,300,104.86
  5. Step 5: Solve for x
    x = 100,946,300,104.86/325,224.40
  6. Step 6: Final answer
    x = 310,389.69

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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.