Home / 222,285.36-306,783-126,770.16

Finding the Fourth Proportional to 222,285.36, 306,783 and 126,770.16

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Solution

The fourth proportional to 222,285.36, 306,783 and 126,770.16 is: 174,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,285.36 : 306,783 = 126,770.16 : x
  2. Step 2: Convert to fraction form
    222,285.36/306,783 = 126,770.16/x
  3. Step 3: Cross multiply
    222,285.36x = 306,783 × 126,770.16
  4. Step 4: Simplify right side
    222,285.36x = 38,890,929,995.28
  5. Step 5: Solve for x
    x = 38,890,929,995.28/222,285.36
  6. Step 6: Final answer
    x = 174,959.48

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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.