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Finding the Fourth Proportional to 325,673.84, 489,259.20 and 231,138.74

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Solution

The fourth proportional to 325,673.84, 489,259.20 and 231,138.74 is: 347,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,673.84 : 489,259.20 = 231,138.74 : x
  2. Step 2: Convert to fraction form
    325,673.84/489,259.20 = 231,138.74/x
  3. Step 3: Cross multiply
    325,673.84x = 489,259.20 × 231,138.74
  4. Step 4: Simplify right side
    325,673.84x = 113,086,755,021.41
  5. Step 5: Solve for x
    x = 113,086,755,021.41/325,673.84
  6. Step 6: Final answer
    x = 347,239.30

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1.5x scale

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.