Home / 222,558.48-307,120.68-121,954.32

Finding the Fourth Proportional to 222,558.48, 307,120.68 and 121,954.32

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Solution

The fourth proportional to 222,558.48, 307,120.68 and 121,954.32 is: 168,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,558.48 : 307,120.68 = 121,954.32 : x
  2. Step 2: Convert to fraction form
    222,558.48/307,120.68 = 121,954.32/x
  3. Step 3: Cross multiply
    222,558.48x = 307,120.68 × 121,954.32
  4. Step 4: Simplify right side
    222,558.48x = 37,454,693,687.34
  5. Step 5: Solve for x
    x = 37,454,693,687.34/222,558.48
  6. Step 6: Final answer
    x = 168,291.47

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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.