Home / 319,106.82-440,442.46-198,339.32

Finding the Fourth Proportional to 319,106.82, 440,442.46 and 198,339.32

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Solution

The fourth proportional to 319,106.82, 440,442.46 and 198,339.32 is: 273,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,106.82 : 440,442.46 = 198,339.32 : x
  2. Step 2: Convert to fraction form
    319,106.82/440,442.46 = 198,339.32/x
  3. Step 3: Cross multiply
    319,106.82x = 440,442.46 × 198,339.32
  4. Step 4: Simplify right side
    319,106.82x = 87,357,054,821.62
  5. Step 5: Solve for x
    x = 87,357,054,821.62/319,106.82
  6. Step 6: Final answer
    x = 273,754.90

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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.