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Finding the Fourth Proportional to 259,846.69, 358,390.83 and 223,609.21

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Solution

The fourth proportional to 259,846.69, 358,390.83 and 223,609.21 is: 308,410.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,846.69 : 358,390.83 = 223,609.21 : x
  2. Step 2: Convert to fraction form
    259,846.69/358,390.83 = 223,609.21/x
  3. Step 3: Cross multiply
    259,846.69x = 358,390.83 × 223,609.21
  4. Step 4: Simplify right side
    259,846.69x = 80,139,489,471.57
  5. Step 5: Solve for x
    x = 80,139,489,471.57/259,846.69
  6. Step 6: Final answer
    x = 308,410.66

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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.