Home / 327,083.80-490,684.02-90,421.24

Finding the Fourth Proportional to 327,083.80, 490,684.02 and 90,421.24

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Solution

The fourth proportional to 327,083.80, 490,684.02 and 90,421.24 is: 135,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,083.80 : 490,684.02 = 90,421.24 : x
  2. Step 2: Convert to fraction form
    327,083.80/490,684.02 = 90,421.24/x
  3. Step 3: Cross multiply
    327,083.80x = 490,684.02 × 90,421.24
  4. Step 4: Simplify right side
    327,083.80x = 44,368,257,536.58
  5. Step 5: Solve for x
    x = 44,368,257,536.58/327,083.80
  6. Step 6: Final answer
    x = 135,647.98

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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.