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Finding the Fourth Proportional to 218,636.18, 299,751.30 and 214,650.98

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Solution

The fourth proportional to 218,636.18, 299,751.30 and 214,650.98 is: 294,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,636.18 : 299,751.30 = 214,650.98 : x
  2. Step 2: Convert to fraction form
    218,636.18/299,751.30 = 214,650.98/x
  3. Step 3: Cross multiply
    218,636.18x = 299,751.30 × 214,650.98
  4. Step 4: Simplify right side
    218,636.18x = 64,341,907,729.26
  5. Step 5: Solve for x
    x = 64,341,907,729.26/218,636.18
  6. Step 6: Final answer
    x = 294,287.57

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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.