Home / 229,867.72-317,215.38-129,263.56

Finding the Fourth Proportional to 229,867.72, 317,215.38 and 129,263.56

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Solution

The fourth proportional to 229,867.72, 317,215.38 and 129,263.56 is: 178,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,867.72 : 317,215.38 = 129,263.56 : x
  2. Step 2: Convert to fraction form
    229,867.72/317,215.38 = 129,263.56/x
  3. Step 3: Cross multiply
    229,867.72x = 317,215.38 × 129,263.56
  4. Step 4: Simplify right side
    229,867.72x = 41,004,389,305.55
  5. Step 5: Solve for x
    x = 41,004,389,305.55/229,867.72
  6. Step 6: Final answer
    x = 178,382.55

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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.