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Finding the Fourth Proportional to 275,509.72, 380,241.82 and 153,029.62

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Solution

The fourth proportional to 275,509.72, 380,241.82 and 153,029.62 is: 211,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,509.72 : 380,241.82 = 153,029.62 : x
  2. Step 2: Convert to fraction form
    275,509.72/380,241.82 = 153,029.62/x
  3. Step 3: Cross multiply
    275,509.72x = 380,241.82 × 153,029.62
  4. Step 4: Simplify right side
    275,509.72x = 58,188,261,222.71
  5. Step 5: Solve for x
    x = 58,188,261,222.71/275,509.72
  6. Step 6: Final answer
    x = 211,202.21

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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.