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Finding the Fourth Proportional to 222,765.85, 307,388.55 and 127,278.73

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Solution

The fourth proportional to 222,765.85, 307,388.55 and 127,278.73 is: 175,628.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,765.85 : 307,388.55 = 127,278.73 : x
  2. Step 2: Convert to fraction form
    222,765.85/307,388.55 = 127,278.73/x
  3. Step 3: Cross multiply
    222,765.85x = 307,388.55 × 127,278.73
  4. Step 4: Simplify right side
    222,765.85x = 39,124,024,260.54
  5. Step 5: Solve for x
    x = 39,124,024,260.54/222,765.85
  6. Step 6: Final answer
    x = 175,628.46

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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.