Home / 213,610.20-319,724.10-197,021.40

Finding the Fourth Proportional to 213,610.20, 319,724.10 and 197,021.40

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Solution

The fourth proportional to 213,610.20, 319,724.10 and 197,021.40 is: 294,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,610.20 : 319,724.10 = 197,021.40 : x
  2. Step 2: Convert to fraction form
    213,610.20/319,724.10 = 197,021.40/x
  3. Step 3: Cross multiply
    213,610.20x = 319,724.10 × 197,021.40
  4. Step 4: Simplify right side
    213,610.20x = 62,992,489,795.74
  5. Step 5: Solve for x
    x = 62,992,489,795.74/213,610.20
  6. Step 6: Final answer
    x = 294,894.58

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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.