Home / 274,325.21-378,553.53-153,443.17

Finding the Fourth Proportional to 274,325.21, 378,553.53 and 153,443.17

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Solution

The fourth proportional to 274,325.21, 378,553.53 and 153,443.17 is: 211,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,325.21 : 378,553.53 = 153,443.17 : x
  2. Step 2: Convert to fraction form
    274,325.21/378,553.53 = 153,443.17/x
  3. Step 3: Cross multiply
    274,325.21x = 378,553.53 × 153,443.17
  4. Step 4: Simplify right side
    274,325.21x = 58,086,453,657.89
  5. Step 5: Solve for x
    x = 58,086,453,657.89/274,325.21
  6. Step 6: Final answer
    x = 211,743.04

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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.