Home / 217,667.63-300,364.85-122,155.88

Finding the Fourth Proportional to 217,667.63, 300,364.85 and 122,155.88

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Solution

The fourth proportional to 217,667.63, 300,364.85 and 122,155.88 is: 168,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,667.63 : 300,364.85 = 122,155.88 : x
  2. Step 2: Convert to fraction form
    217,667.63/300,364.85 = 122,155.88/x
  3. Step 3: Cross multiply
    217,667.63x = 300,364.85 × 122,155.88
  4. Step 4: Simplify right side
    217,667.63x = 36,691,331,376.38
  5. Step 5: Solve for x
    x = 36,691,331,376.38/217,667.63
  6. Step 6: Final answer
    x = 168,565.86

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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.