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Finding the Fourth Proportional to 218,171.64, 301,070.88 and 122,675.88

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Solution

The fourth proportional to 218,171.64, 301,070.88 and 122,675.88 is: 169,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,171.64 : 301,070.88 = 122,675.88 : x
  2. Step 2: Convert to fraction form
    218,171.64/301,070.88 = 122,675.88/x
  3. Step 3: Cross multiply
    218,171.64x = 301,070.88 × 122,675.88
  4. Step 4: Simplify right side
    218,171.64x = 36,934,135,146.37
  5. Step 5: Solve for x
    x = 36,934,135,146.37/218,171.64
  6. Step 6: Final answer
    x = 169,289.35

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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.