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Finding the Fourth Proportional to 275,616.44, 380,369.43 and 153,122.84

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Solution

The fourth proportional to 275,616.44, 380,369.43 and 153,122.84 is: 211,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,616.44 : 380,369.43 = 153,122.84 : x
  2. Step 2: Convert to fraction form
    275,616.44/380,369.43 = 153,122.84/x
  3. Step 3: Cross multiply
    275,616.44x = 380,369.43 × 153,122.84
  4. Step 4: Simplify right side
    275,616.44x = 58,243,247,370.78
  5. Step 5: Solve for x
    x = 58,243,247,370.78/275,616.44
  6. Step 6: Final answer
    x = 211,319.93

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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.