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Finding the Fourth Proportional to 347,996.12, 480,211.88 and 204,728.45

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Solution

The fourth proportional to 347,996.12, 480,211.88 and 204,728.45 is: 282,511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,996.12 : 480,211.88 = 204,728.45 : x
  2. Step 2: Convert to fraction form
    347,996.12/480,211.88 = 204,728.45/x
  3. Step 3: Cross multiply
    347,996.12x = 480,211.88 × 204,728.45
  4. Step 4: Simplify right side
    347,996.12x = 98,313,030,439.28
  5. Step 5: Solve for x
    x = 98,313,030,439.28/347,996.12
  6. Step 6: Final answer
    x = 282,511.86

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1.5x scale

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.