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Finding the Fourth Proportional to 222,412.59, 307,004.22 and 135,197.37

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Solution

The fourth proportional to 222,412.59, 307,004.22 and 135,197.37 is: 186,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,412.59 : 307,004.22 = 135,197.37 : x
  2. Step 2: Convert to fraction form
    222,412.59/307,004.22 = 135,197.37/x
  3. Step 3: Cross multiply
    222,412.59x = 307,004.22 × 135,197.37
  4. Step 4: Simplify right side
    222,412.59x = 41,506,163,122.90
  5. Step 5: Solve for x
    x = 41,506,163,122.90/222,412.59
  6. Step 6: Final answer
    x = 186,617.87

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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.