Home / 222,478.52-307,042.36-126,999.56

Finding the Fourth Proportional to 222,478.52, 307,042.36 and 126,999.56

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Solution

The fourth proportional to 222,478.52, 307,042.36 and 126,999.56 is: 175,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,478.52 : 307,042.36 = 126,999.56 : x
  2. Step 2: Convert to fraction form
    222,478.52/307,042.36 = 126,999.56/x
  3. Step 3: Cross multiply
    222,478.52x = 307,042.36 × 126,999.56
  4. Step 4: Simplify right side
    222,478.52x = 38,994,244,621.36
  5. Step 5: Solve for x
    x = 38,994,244,621.36/222,478.52
  6. Step 6: Final answer
    x = 175,271.95

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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.