Home / 213,733.56-319,021.85-188,519.34

Finding the Fourth Proportional to 213,733.56, 319,021.85 and 188,519.34

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Solution

The fourth proportional to 213,733.56, 319,021.85 and 188,519.34 is: 281,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,733.56 : 319,021.85 = 188,519.34 : x
  2. Step 2: Convert to fraction form
    213,733.56/319,021.85 = 188,519.34/x
  3. Step 3: Cross multiply
    213,733.56x = 319,021.85 × 188,519.34
  4. Step 4: Simplify right side
    213,733.56x = 60,141,788,607.58
  5. Step 5: Solve for x
    x = 60,141,788,607.58/213,733.56
  6. Step 6: Final answer
    x = 281,386.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.