Home / 217,440.27-300,066.75-121,947.33

Finding the Fourth Proportional to 217,440.27, 300,066.75 and 121,947.33

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Solution

The fourth proportional to 217,440.27, 300,066.75 and 121,947.33 is: 168,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,440.27 : 300,066.75 = 121,947.33 : x
  2. Step 2: Convert to fraction form
    217,440.27/300,066.75 = 121,947.33/x
  3. Step 3: Cross multiply
    217,440.27x = 300,066.75 × 121,947.33
  4. Step 4: Simplify right side
    217,440.27x = 36,592,338,984.28
  5. Step 5: Solve for x
    x = 36,592,338,984.28/217,440.27
  6. Step 6: Final answer
    x = 168,286.85

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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.