Home / 326,104.20-489,156.30-231,625.80

Finding the Fourth Proportional to 326,104.20, 489,156.30 and 231,625.80

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Solution

The fourth proportional to 326,104.20, 489,156.30 and 231,625.80 is: 347,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,104.20 : 489,156.30 = 231,625.80 : x
  2. Step 2: Convert to fraction form
    326,104.20/489,156.30 = 231,625.80/x
  3. Step 3: Cross multiply
    326,104.20x = 489,156.30 × 231,625.80
  4. Step 4: Simplify right side
    326,104.20x = 113,301,219,312.54
  5. Step 5: Solve for x
    x = 113,301,219,312.54/326,104.20
  6. Step 6: Final answer
    x = 347,438.70

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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.