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Finding the Fourth Proportional to 274,325.59, 378,551.50 and 153,446.19

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Solution

The fourth proportional to 274,325.59, 378,551.50 and 153,446.19 is: 211,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,325.59 : 378,551.50 = 153,446.19 : x
  2. Step 2: Convert to fraction form
    274,325.59/378,551.50 = 153,446.19/x
  3. Step 3: Cross multiply
    274,325.59x = 378,551.50 × 153,446.19
  4. Step 4: Simplify right side
    274,325.59x = 58,087,285,393.79
  5. Step 5: Solve for x
    x = 58,087,285,393.79/274,325.59
  6. Step 6: Final answer
    x = 211,745.78

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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.