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Finding the Fourth Proportional to 329,905.80, 445,722.75 and 329,905.80

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Solution

The fourth proportional to 329,905.80, 445,722.75 and 329,905.80 is: 445,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,905.80 : 445,722.75 = 329,905.80 : x
  2. Step 2: Convert to fraction form
    329,905.80/445,722.75 = 329,905.80/x
  3. Step 3: Cross multiply
    329,905.80x = 445,722.75 × 329,905.80
  4. Step 4: Simplify right side
    329,905.80x = 147,046,520,416.95
  5. Step 5: Solve for x
    x = 147,046,520,416.95/329,905.80
  6. Step 6: Final answer
    x = 445,722.75

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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.