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Finding the Fourth Proportional to 222,813.76, 307,481.67 and 120,838.20

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Solution

The fourth proportional to 222,813.76, 307,481.67 and 120,838.20 is: 166,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,813.76 : 307,481.67 = 120,838.20 : x
  2. Step 2: Convert to fraction form
    222,813.76/307,481.67 = 120,838.20/x
  3. Step 3: Cross multiply
    222,813.76x = 307,481.67 × 120,838.20
  4. Step 4: Simplify right side
    222,813.76x = 37,155,531,535.79
  5. Step 5: Solve for x
    x = 37,155,531,535.79/222,813.76
  6. Step 6: Final answer
    x = 166,756.00

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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.