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Finding the Fourth Proportional to 235,791.96, 325,296.72 and 145,120.56

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Solution

The fourth proportional to 235,791.96, 325,296.72 and 145,120.56 is: 200,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,791.96 : 325,296.72 = 145,120.56 : x
  2. Step 2: Convert to fraction form
    235,791.96/325,296.72 = 145,120.56/x
  3. Step 3: Cross multiply
    235,791.96x = 325,296.72 × 145,120.56
  4. Step 4: Simplify right side
    235,791.96x = 47,207,242,172.56
  5. Step 5: Solve for x
    x = 47,207,242,172.56/235,791.96
  6. Step 6: Final answer
    x = 200,207.17

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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.