Home / 218,427.32-301,439.41-122,940.20

Finding the Fourth Proportional to 218,427.32, 301,439.41 and 122,940.20

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Solution

The fourth proportional to 218,427.32, 301,439.41 and 122,940.20 is: 169,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,427.32 : 301,439.41 = 122,940.20 : x
  2. Step 2: Convert to fraction form
    218,427.32/301,439.41 = 122,940.20/x
  3. Step 3: Cross multiply
    218,427.32x = 301,439.41 × 122,940.20
  4. Step 4: Simplify right side
    218,427.32x = 37,059,021,353.28
  5. Step 5: Solve for x
    x = 37,059,021,353.28/218,427.32
  6. Step 6: Final answer
    x = 169,662.94

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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.