Home / 217,917.85-300,750.99-131,924.22

Finding the Fourth Proportional to 217,917.85, 300,750.99 and 131,924.22

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Solution

The fourth proportional to 217,917.85, 300,750.99 and 131,924.22 is: 182,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,917.85 : 300,750.99 = 131,924.22 : x
  2. Step 2: Convert to fraction form
    217,917.85/300,750.99 = 131,924.22/x
  3. Step 3: Cross multiply
    217,917.85x = 300,750.99 × 131,924.22
  4. Step 4: Simplify right side
    217,917.85x = 39,676,339,769.98
  5. Step 5: Solve for x
    x = 39,676,339,769.98/217,917.85
  6. Step 6: Final answer
    x = 182,070.17

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1.5x scale

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.