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Finding the Fourth Proportional to 275,435.48, 380,108.50 and 154,584.26

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Solution

The fourth proportional to 275,435.48, 380,108.50 and 154,584.26 is: 213,330.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,435.48 : 380,108.50 = 154,584.26 : x
  2. Step 2: Convert to fraction form
    275,435.48/380,108.50 = 154,584.26/x
  3. Step 3: Cross multiply
    275,435.48x = 380,108.50 × 154,584.26
  4. Step 4: Simplify right side
    275,435.48x = 58,758,791,192.21
  5. Step 5: Solve for x
    x = 58,758,791,192.21/275,435.48
  6. Step 6: Final answer
    x = 213,330.51

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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.