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Finding the Fourth Proportional to 379,656.24, 570,370.10 and 221,995.41

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Solution

The fourth proportional to 379,656.24, 570,370.10 and 221,995.41 is: 333,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,656.24 : 570,370.10 = 221,995.41 : x
  2. Step 2: Convert to fraction form
    379,656.24/570,370.10 = 221,995.41/x
  3. Step 3: Cross multiply
    379,656.24x = 570,370.10 × 221,995.41
  4. Step 4: Simplify right side
    379,656.24x = 126,619,543,091.26
  5. Step 5: Solve for x
    x = 126,619,543,091.26/379,656.24
  6. Step 6: Final answer
    x = 333,511.03

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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.