Home / 326,913.24-490,398.08-90,255.96

Finding the Fourth Proportional to 326,913.24, 490,398.08 and 90,255.96

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Solution

The fourth proportional to 326,913.24, 490,398.08 and 90,255.96 is: 135,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,913.24 : 490,398.08 = 90,255.96 : x
  2. Step 2: Convert to fraction form
    326,913.24/490,398.08 = 90,255.96/x
  3. Step 3: Cross multiply
    326,913.24x = 490,398.08 × 90,255.96
  4. Step 4: Simplify right side
    326,913.24x = 44,261,349,492.56
  5. Step 5: Solve for x
    x = 44,261,349,492.56/326,913.24
  6. Step 6: Final answer
    x = 135,391.73

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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.