Home / 268,629.80-402,944.69-79,090.19

Finding the Fourth Proportional to 268,629.80, 402,944.69 and 79,090.19

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Solution

The fourth proportional to 268,629.80, 402,944.69 and 79,090.19 is: 118,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,629.80 : 402,944.69 = 79,090.19 : x
  2. Step 2: Convert to fraction form
    268,629.80/402,944.69 = 79,090.19/x
  3. Step 3: Cross multiply
    268,629.80x = 402,944.69 × 79,090.19
  4. Step 4: Simplify right side
    268,629.80x = 31,868,973,074.24
  5. Step 5: Solve for x
    x = 31,868,973,074.24/268,629.80
  6. Step 6: Final answer
    x = 118,635.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.