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Finding the Fourth Proportional to 275,427.55, 380,081.48 and 152,917.27

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Solution

The fourth proportional to 275,427.55, 380,081.48 and 152,917.27 is: 211,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,427.55 : 380,081.48 = 152,917.27 : x
  2. Step 2: Convert to fraction form
    275,427.55/380,081.48 = 152,917.27/x
  3. Step 3: Cross multiply
    275,427.55x = 380,081.48 × 152,917.27
  4. Step 4: Simplify right side
    275,427.55x = 58,121,019,634.17
  5. Step 5: Solve for x
    x = 58,121,019,634.17/275,427.55
  6. Step 6: Final answer
    x = 211,021.09

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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.