Home / 209,359.94-312,621.80-166,180.93

Finding the Fourth Proportional to 209,359.94, 312,621.80 and 166,180.93

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Solution

The fourth proportional to 209,359.94, 312,621.80 and 166,180.93 is: 248,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,359.94 : 312,621.80 = 166,180.93 : x
  2. Step 2: Convert to fraction form
    209,359.94/312,621.80 = 166,180.93/x
  3. Step 3: Cross multiply
    209,359.94x = 312,621.80 × 166,180.93
  4. Step 4: Simplify right side
    209,359.94x = 51,951,782,451.55
  5. Step 5: Solve for x
    x = 51,951,782,451.55/209,359.94
  6. Step 6: Final answer
    x = 248,145.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.