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Finding the Fourth Proportional to 222,069.50, 306,460.23 and 121,469.66

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Solution

The fourth proportional to 222,069.50, 306,460.23 and 121,469.66 is: 167,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,069.50 : 306,460.23 = 121,469.66 : x
  2. Step 2: Convert to fraction form
    222,069.50/306,460.23 = 121,469.66/x
  3. Step 3: Cross multiply
    222,069.50x = 306,460.23 × 121,469.66
  4. Step 4: Simplify right side
    222,069.50x = 37,225,619,941.62
  5. Step 5: Solve for x
    x = 37,225,619,941.62/222,069.50
  6. Step 6: Final answer
    x = 167,630.49

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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.