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Finding the Fourth Proportional to 218,167.21, 301,059.75 and 122,668.21

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Solution

The fourth proportional to 218,167.21, 301,059.75 and 122,668.21 is: 169,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,167.21 : 301,059.75 = 122,668.21 : x
  2. Step 2: Convert to fraction form
    218,167.21/301,059.75 = 122,668.21/x
  3. Step 3: Cross multiply
    218,167.21x = 301,059.75 × 122,668.21
  4. Step 4: Simplify right side
    218,167.21x = 36,930,460,635.55
  5. Step 5: Solve for x
    x = 36,930,460,635.55/218,167.21
  6. Step 6: Final answer
    x = 169,275.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.