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Finding the Fourth Proportional to 274,060.20, 411,320.70 and 133,938.60

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Solution

The fourth proportional to 274,060.20, 411,320.70 and 133,938.60 is: 201,020.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,060.20 : 411,320.70 = 133,938.60 : x
  2. Step 2: Convert to fraction form
    274,060.20/411,320.70 = 133,938.60/x
  3. Step 3: Cross multiply
    274,060.20x = 411,320.70 × 133,938.60
  4. Step 4: Simplify right side
    274,060.20x = 55,091,718,709.02
  5. Step 5: Solve for x
    x = 55,091,718,709.02/274,060.20
  6. Step 6: Final answer
    x = 201,020.50

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1.5x scale

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.