Home / 227,815.20-341,722.80-127,978.65

Finding the Fourth Proportional to 227,815.20, 341,722.80 and 127,978.65

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Solution

The fourth proportional to 227,815.20, 341,722.80 and 127,978.65 is: 191,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,815.20 : 341,722.80 = 127,978.65 : x
  2. Step 2: Convert to fraction form
    227,815.20/341,722.80 = 127,978.65/x
  3. Step 3: Cross multiply
    227,815.20x = 341,722.80 × 127,978.65
  4. Step 4: Simplify right side
    227,815.20x = 43,733,222,618.22
  5. Step 5: Solve for x
    x = 43,733,222,618.22/227,815.20
  6. Step 6: Final answer
    x = 191,967.98

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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.