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Finding the Fourth Proportional to 295,456.88, 442,879.14 and 137,555.48

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Solution

The fourth proportional to 295,456.88, 442,879.14 and 137,555.48 is: 206,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,456.88 : 442,879.14 = 137,555.48 : x
  2. Step 2: Convert to fraction form
    295,456.88/442,879.14 = 137,555.48/x
  3. Step 3: Cross multiply
    295,456.88x = 442,879.14 × 137,555.48
  4. Step 4: Simplify right side
    295,456.88x = 60,920,452,684.69
  5. Step 5: Solve for x
    x = 60,920,452,684.69/295,456.88
  6. Step 6: Final answer
    x = 206,190.67

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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.