Home / 423,022.39-634,374.57-170,217.03

Finding the Fourth Proportional to 423,022.39, 634,374.57 and 170,217.03

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Solution

The fourth proportional to 423,022.39, 634,374.57 and 170,217.03 is: 255,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,022.39 : 634,374.57 = 170,217.03 : x
  2. Step 2: Convert to fraction form
    423,022.39/634,374.57 = 170,217.03/x
  3. Step 3: Cross multiply
    423,022.39x = 634,374.57 × 170,217.03
  4. Step 4: Simplify right side
    423,022.39x = 107,981,355,212.93
  5. Step 5: Solve for x
    x = 107,981,355,212.93/423,022.39
  6. Step 6: Final answer
    x = 255,261.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.