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Finding the Fourth Proportional to 222,476.12, 307,021.94 and 126,980.84

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Solution

The fourth proportional to 222,476.12, 307,021.94 and 126,980.84 is: 175,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,476.12 : 307,021.94 = 126,980.84 : x
  2. Step 2: Convert to fraction form
    222,476.12/307,021.94 = 126,980.84/x
  3. Step 3: Cross multiply
    222,476.12x = 307,021.94 × 126,980.84
  4. Step 4: Simplify right side
    222,476.12x = 38,985,903,839.63
  5. Step 5: Solve for x
    x = 38,985,903,839.63/222,476.12
  6. Step 6: Final answer
    x = 175,236.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.