Home / 399,152.20-598,992.74-219,363.18

Finding the Fourth Proportional to 399,152.20, 598,992.74 and 219,363.18

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Solution

The fourth proportional to 399,152.20, 598,992.74 and 219,363.18 is: 329,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,152.20 : 598,992.74 = 219,363.18 : x
  2. Step 2: Convert to fraction form
    399,152.20/598,992.74 = 219,363.18/x
  3. Step 3: Cross multiply
    399,152.20x = 598,992.74 × 219,363.18
  4. Step 4: Simplify right side
    399,152.20x = 131,396,953,092.22
  5. Step 5: Solve for x
    x = 131,396,953,092.22/399,152.20
  6. Step 6: Final answer
    x = 329,190.10

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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.