Home / 217,352.28-299,945.34-121,858.92

Finding the Fourth Proportional to 217,352.28, 299,945.34 and 121,858.92

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Solution

The fourth proportional to 217,352.28, 299,945.34 and 121,858.92 is: 168,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,352.28 : 299,945.34 = 121,858.92 : x
  2. Step 2: Convert to fraction form
    217,352.28/299,945.34 = 121,858.92/x
  3. Step 3: Cross multiply
    217,352.28x = 299,945.34 × 121,858.92
  4. Step 4: Simplify right side
    217,352.28x = 36,551,015,191.43
  5. Step 5: Solve for x
    x = 36,551,015,191.43/217,352.28
  6. Step 6: Final answer
    x = 168,164.86

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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.