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Finding the Fourth Proportional to 223,544.40, 308,491.08 and 122,942.40

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Solution

The fourth proportional to 223,544.40, 308,491.08 and 122,942.40 is: 169,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,544.40 : 308,491.08 = 122,942.40 : x
  2. Step 2: Convert to fraction form
    223,544.40/308,491.08 = 122,942.40/x
  3. Step 3: Cross multiply
    223,544.40x = 308,491.08 × 122,942.40
  4. Step 4: Simplify right side
    223,544.40x = 37,926,633,753.79
  5. Step 5: Solve for x
    x = 37,926,633,753.79/223,544.40
  6. Step 6: Final answer
    x = 169,660.41

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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.