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Finding the Fourth Proportional to 351,870.97, 485,861.43 and 325,003.67

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Solution

The fourth proportional to 351,870.97, 485,861.43 and 325,003.67 is: 448,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,870.97 : 485,861.43 = 325,003.67 : x
  2. Step 2: Convert to fraction form
    351,870.97/485,861.43 = 325,003.67/x
  3. Step 3: Cross multiply
    351,870.97x = 485,861.43 × 325,003.67
  4. Step 4: Simplify right side
    351,870.97x = 157,906,750,294.87
  5. Step 5: Solve for x
    x = 157,906,750,294.87/351,870.97
  6. Step 6: Final answer
    x = 448,763.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.