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Finding the Fourth Proportional to 323,485.26, 485,315.25 and 98,839.54

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Solution

The fourth proportional to 323,485.26, 485,315.25 and 98,839.54 is: 148,286.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,485.26 : 485,315.25 = 98,839.54 : x
  2. Step 2: Convert to fraction form
    323,485.26/485,315.25 = 98,839.54/x
  3. Step 3: Cross multiply
    323,485.26x = 485,315.25 × 98,839.54
  4. Step 4: Simplify right side
    323,485.26x = 47,968,336,300.98
  5. Step 5: Solve for x
    x = 47,968,336,300.98/323,485.26
  6. Step 6: Final answer
    x = 148,286.00

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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.