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Finding the Fourth Proportional to 274,575, 378,919.82 and 153,713.24

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Solution

The fourth proportional to 274,575, 378,919.82 and 153,713.24 is: 212,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,575 : 378,919.82 = 153,713.24 : x
  2. Step 2: Convert to fraction form
    274,575/378,919.82 = 153,713.24/x
  3. Step 3: Cross multiply
    274,575x = 378,919.82 × 153,713.24
  4. Step 4: Simplify right side
    274,575x = 58,244,993,232.42
  5. Step 5: Solve for x
    x = 58,244,993,232.42/274,575
  6. Step 6: Final answer
    x = 212,127.81

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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.