Home / 222,485.36-307,059-126,970.16

Finding the Fourth Proportional to 222,485.36, 307,059 and 126,970.16

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Solution

The fourth proportional to 222,485.36, 307,059 and 126,970.16 is: 175,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,485.36 : 307,059 = 126,970.16 : x
  2. Step 2: Convert to fraction form
    222,485.36/307,059 = 126,970.16/x
  3. Step 3: Cross multiply
    222,485.36x = 307,059 × 126,970.16
  4. Step 4: Simplify right side
    222,485.36x = 38,987,330,359.44
  5. Step 5: Solve for x
    x = 38,987,330,359.44/222,485.36
  6. Step 6: Final answer
    x = 175,235.49

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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.