Home / 263,579.63-363,739.34-142,720.88

Finding the Fourth Proportional to 263,579.63, 363,739.34 and 142,720.88

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Solution

The fourth proportional to 263,579.63, 363,739.34 and 142,720.88 is: 196,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,579.63 : 363,739.34 = 142,720.88 : x
  2. Step 2: Convert to fraction form
    263,579.63/363,739.34 = 142,720.88/x
  3. Step 3: Cross multiply
    263,579.63x = 363,739.34 × 142,720.88
  4. Step 4: Simplify right side
    263,579.63x = 51,913,197,233.52
  5. Step 5: Solve for x
    x = 51,913,197,233.52/263,579.63
  6. Step 6: Final answer
    x = 196,954.52

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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.