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Finding the Fourth Proportional to 222,605.50, 307,195.60 and 122,003.50

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Solution

The fourth proportional to 222,605.50, 307,195.60 and 122,003.50 is: 168,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,605.50 : 307,195.60 = 122,003.50 : x
  2. Step 2: Convert to fraction form
    222,605.50/307,195.60 = 122,003.50/x
  3. Step 3: Cross multiply
    222,605.50x = 307,195.60 × 122,003.50
  4. Step 4: Simplify right side
    222,605.50x = 37,478,938,384.60
  5. Step 5: Solve for x
    x = 37,478,938,384.60/222,605.50
  6. Step 6: Final answer
    x = 168,364.84

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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.