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Finding the Fourth Proportional to 274,669.06, 412,007.70 and 85,127.24

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Solution

The fourth proportional to 274,669.06, 412,007.70 and 85,127.24 is: 127,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,669.06 : 412,007.70 = 85,127.24 : x
  2. Step 2: Convert to fraction form
    274,669.06/412,007.70 = 85,127.24/x
  3. Step 3: Cross multiply
    274,669.06x = 412,007.70 × 85,127.24
  4. Step 4: Simplify right side
    274,669.06x = 35,073,078,359.75
  5. Step 5: Solve for x
    x = 35,073,078,359.75/274,669.06
  6. Step 6: Final answer
    x = 127,692.13

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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.