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Finding the Fourth Proportional to 301,364.91, 451,995.32 and 85,238.73

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Solution

The fourth proportional to 301,364.91, 451,995.32 and 85,238.73 is: 127,843.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,364.91 : 451,995.32 = 85,238.73 : x
  2. Step 2: Convert to fraction form
    301,364.91/451,995.32 = 85,238.73/x
  3. Step 3: Cross multiply
    301,364.91x = 451,995.32 × 85,238.73
  4. Step 4: Simplify right side
    301,364.91x = 38,527,506,616.55
  5. Step 5: Solve for x
    x = 38,527,506,616.55/301,364.91
  6. Step 6: Final answer
    x = 127,843.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.