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Finding the Fourth Proportional to 218,636.67, 299,751.98 and 214,651.47

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Solution

The fourth proportional to 218,636.67, 299,751.98 and 214,651.47 is: 294,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,636.67 : 299,751.98 = 214,651.47 : x
  2. Step 2: Convert to fraction form
    218,636.67/299,751.98 = 214,651.47/x
  3. Step 3: Cross multiply
    218,636.67x = 299,751.98 × 214,651.47
  4. Step 4: Simplify right side
    218,636.67x = 64,342,203,142.41
  5. Step 5: Solve for x
    x = 64,342,203,142.41/218,636.67
  6. Step 6: Final answer
    x = 294,288.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.