Home / 436,213.96-654,321.20-136,717.88

Finding the Fourth Proportional to 436,213.96, 654,321.20 and 136,717.88

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Solution

The fourth proportional to 436,213.96, 654,321.20 and 136,717.88 is: 205,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,213.96 : 654,321.20 = 136,717.88 : x
  2. Step 2: Convert to fraction form
    436,213.96/654,321.20 = 136,717.88/x
  3. Step 3: Cross multiply
    436,213.96x = 654,321.20 × 136,717.88
  4. Step 4: Simplify right side
    436,213.96x = 89,457,407,303.06
  5. Step 5: Solve for x
    x = 89,457,407,303.06/436,213.96
  6. Step 6: Final answer
    x = 205,076.90

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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.