Home / 218,283.12-301,227.96-122,790.48

Finding the Fourth Proportional to 218,283.12, 301,227.96 and 122,790.48

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Solution

The fourth proportional to 218,283.12, 301,227.96 and 122,790.48 is: 169,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,283.12 : 301,227.96 = 122,790.48 : x
  2. Step 2: Convert to fraction form
    218,283.12/301,227.96 = 122,790.48/x
  3. Step 3: Cross multiply
    218,283.12x = 301,227.96 × 122,790.48
  4. Step 4: Simplify right side
    218,283.12x = 36,987,925,797.82
  5. Step 5: Solve for x
    x = 36,987,925,797.82/218,283.12
  6. Step 6: Final answer
    x = 169,449.32

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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.