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Finding the Fourth Proportional to 218,338.28, 301,290.60 and 122,826.56

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Solution

The fourth proportional to 218,338.28, 301,290.60 and 122,826.56 is: 169,491.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,338.28 : 301,290.60 = 122,826.56 : x
  2. Step 2: Convert to fraction form
    218,338.28/301,290.60 = 122,826.56/x
  3. Step 3: Cross multiply
    218,338.28x = 301,290.60 × 122,826.56
  4. Step 4: Simplify right side
    218,338.28x = 37,006,487,958.34
  5. Step 5: Solve for x
    x = 37,006,487,958.34/218,338.28
  6. Step 6: Final answer
    x = 169,491.52

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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.