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Finding the Fourth Proportional to 236,667.88, 355,235.10 and 143,355.88

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Solution

The fourth proportional to 236,667.88, 355,235.10 and 143,355.88 is: 215,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,667.88 : 355,235.10 = 143,355.88 : x
  2. Step 2: Convert to fraction form
    236,667.88/355,235.10 = 143,355.88/x
  3. Step 3: Cross multiply
    236,667.88x = 355,235.10 × 143,355.88
  4. Step 4: Simplify right side
    236,667.88x = 50,925,040,367.39
  5. Step 5: Solve for x
    x = 50,925,040,367.39/236,667.88
  6. Step 6: Final answer
    x = 215,175.12

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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.