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Finding the Fourth Proportional to 222,069, 306,459.54 and 121,469.16

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Solution

The fourth proportional to 222,069, 306,459.54 and 121,469.16 is: 167,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,069 : 306,459.54 = 121,469.16 : x
  2. Step 2: Convert to fraction form
    222,069/306,459.54 = 121,469.16/x
  3. Step 3: Cross multiply
    222,069x = 306,459.54 × 121,469.16
  4. Step 4: Simplify right side
    222,069x = 37,225,382,897.79
  5. Step 5: Solve for x
    x = 37,225,382,897.79/222,069
  6. Step 6: Final answer
    x = 167,629.80

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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.