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Finding the Fourth Proportional to 222,327.90, 306,783.60 and 126,828.90

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Solution

The fourth proportional to 222,327.90, 306,783.60 and 126,828.90 is: 175,007.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,327.90 : 306,783.60 = 126,828.90 : x
  2. Step 2: Convert to fraction form
    222,327.90/306,783.60 = 126,828.90/x
  3. Step 3: Cross multiply
    222,327.90x = 306,783.60 × 126,828.90
  4. Step 4: Simplify right side
    222,327.90x = 38,909,026,526.04
  5. Step 5: Solve for x
    x = 38,909,026,526.04/222,327.90
  6. Step 6: Final answer
    x = 175,007.39

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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.