Home / 315,982.20-436,060.62-188,668.92

Finding the Fourth Proportional to 315,982.20, 436,060.62 and 188,668.92

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Solution

The fourth proportional to 315,982.20, 436,060.62 and 188,668.92 is: 260,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,982.20 : 436,060.62 = 188,668.92 : x
  2. Step 2: Convert to fraction form
    315,982.20/436,060.62 = 188,668.92/x
  3. Step 3: Cross multiply
    315,982.20x = 436,060.62 × 188,668.92
  4. Step 4: Simplify right side
    315,982.20x = 82,271,086,229.93
  5. Step 5: Solve for x
    x = 82,271,086,229.93/315,982.20
  6. Step 6: Final answer
    x = 260,366.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.