Home / 209,467.12-312,777.62-203,791.72

Finding the Fourth Proportional to 209,467.12, 312,777.62 and 203,791.72

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Solution

The fourth proportional to 209,467.12, 312,777.62 and 203,791.72 is: 304,303.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,467.12 : 312,777.62 = 203,791.72 : x
  2. Step 2: Convert to fraction form
    209,467.12/312,777.62 = 203,791.72/x
  3. Step 3: Cross multiply
    209,467.12x = 312,777.62 × 203,791.72
  4. Step 4: Simplify right side
    209,467.12x = 63,741,489,157.31
  5. Step 5: Solve for x
    x = 63,741,489,157.31/209,467.12
  6. Step 6: Final answer
    x = 304,303.08

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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.