Home / 315,984.24-436,065.12-188,636.04

Finding the Fourth Proportional to 315,984.24, 436,065.12 and 188,636.04

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Solution

The fourth proportional to 315,984.24, 436,065.12 and 188,636.04 is: 260,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,984.24 : 436,065.12 = 188,636.04 : x
  2. Step 2: Convert to fraction form
    315,984.24/436,065.12 = 188,636.04/x
  3. Step 3: Cross multiply
    315,984.24x = 436,065.12 × 188,636.04
  4. Step 4: Simplify right side
    315,984.24x = 82,257,597,418.92
  5. Step 5: Solve for x
    x = 82,257,597,418.92/315,984.24
  6. Step 6: Final answer
    x = 260,321.84

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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.