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Finding the Fourth Proportional to 222,771.55, 307,357.58 and 136,642.03

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Solution

The fourth proportional to 222,771.55, 307,357.58 and 136,642.03 is: 188,524.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,771.55 : 307,357.58 = 136,642.03 : x
  2. Step 2: Convert to fraction form
    222,771.55/307,357.58 = 136,642.03/x
  3. Step 3: Cross multiply
    222,771.55x = 307,357.58 × 136,642.03
  4. Step 4: Simplify right side
    222,771.55x = 41,997,963,667.09
  5. Step 5: Solve for x
    x = 41,997,963,667.09/222,771.55
  6. Step 6: Final answer
    x = 188,524.81

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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.