Home / 409,268.24-613,985.60-172,611.76

Finding the Fourth Proportional to 409,268.24, 613,985.60 and 172,611.76

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Solution

The fourth proportional to 409,268.24, 613,985.60 and 172,611.76 is: 258,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,268.24 : 613,985.60 = 172,611.76 : x
  2. Step 2: Convert to fraction form
    409,268.24/613,985.60 = 172,611.76/x
  3. Step 3: Cross multiply
    409,268.24x = 613,985.60 × 172,611.76
  4. Step 4: Simplify right side
    409,268.24x = 105,981,135,030.66
  5. Step 5: Solve for x
    x = 105,981,135,030.66/409,268.24
  6. Step 6: Final answer
    x = 258,952.75

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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.