Home / 217,520.08-300,179.76-122,028.83

Finding the Fourth Proportional to 217,520.08, 300,179.76 and 122,028.83

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Solution

The fourth proportional to 217,520.08, 300,179.76 and 122,028.83 is: 168,400.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,520.08 : 300,179.76 = 122,028.83 : x
  2. Step 2: Convert to fraction form
    217,520.08/300,179.76 = 122,028.83/x
  3. Step 3: Cross multiply
    217,520.08x = 300,179.76 × 122,028.83
  4. Step 4: Simplify right side
    217,520.08x = 36,630,584,474.64
  5. Step 5: Solve for x
    x = 36,630,584,474.64/217,520.08
  6. Step 6: Final answer
    x = 168,400.93

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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.