Home / 436,213.18-654,318.78-136,716.58

Finding the Fourth Proportional to 436,213.18, 654,318.78 and 136,716.58

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Solution

The fourth proportional to 436,213.18, 654,318.78 and 136,716.58 is: 205,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,213.18 : 654,318.78 = 136,716.58 : x
  2. Step 2: Convert to fraction form
    436,213.18/654,318.78 = 136,716.58/x
  3. Step 3: Cross multiply
    436,213.18x = 654,318.78 × 136,716.58
  4. Step 4: Simplify right side
    436,213.18x = 89,456,225,831.37
  5. Step 5: Solve for x
    x = 89,456,225,831.37/436,213.18
  6. Step 6: Final answer
    x = 205,074.56

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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.