Home / 222,763.10-307,412.75-120,788.38

Finding the Fourth Proportional to 222,763.10, 307,412.75 and 120,788.38

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Solution

The fourth proportional to 222,763.10, 307,412.75 and 120,788.38 is: 166,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,763.10 : 307,412.75 = 120,788.38 : x
  2. Step 2: Convert to fraction form
    222,763.10/307,412.75 = 120,788.38/x
  3. Step 3: Cross multiply
    222,763.10x = 307,412.75 × 120,788.38
  4. Step 4: Simplify right side
    222,763.10x = 37,131,887,597.28
  5. Step 5: Solve for x
    x = 37,131,887,597.28/222,763.10
  6. Step 6: Final answer
    x = 166,687.78

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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.