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Finding the Fourth Proportional to 329,906.80, 445,724.10 and 329,906.80

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Solution

The fourth proportional to 329,906.80, 445,724.10 and 329,906.80 is: 445,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,906.80 : 445,724.10 = 329,906.80 : x
  2. Step 2: Convert to fraction form
    329,906.80/445,724.10 = 329,906.80/x
  3. Step 3: Cross multiply
    329,906.80x = 445,724.10 × 329,906.80
  4. Step 4: Simplify right side
    329,906.80x = 147,047,411,513.88
  5. Step 5: Solve for x
    x = 147,047,411,513.88/329,906.80
  6. Step 6: Final answer
    x = 445,724.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.