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Finding the Fourth Proportional to 274,325.73, 378,551.70 and 153,446.28

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Solution

The fourth proportional to 274,325.73, 378,551.70 and 153,446.28 is: 211,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,325.73 : 378,551.70 = 153,446.28 : x
  2. Step 2: Convert to fraction form
    274,325.73/378,551.70 = 153,446.28/x
  3. Step 3: Cross multiply
    274,325.73x = 378,551.70 × 153,446.28
  4. Step 4: Simplify right side
    274,325.73x = 58,087,350,152.68
  5. Step 5: Solve for x
    x = 58,087,350,152.68/274,325.73
  6. Step 6: Final answer
    x = 211,745.91

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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.