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Finding the Fourth Proportional to 218,171.52, 301,104.12 and 122,677.53

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Solution

The fourth proportional to 218,171.52, 301,104.12 and 122,677.53 is: 169,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,171.52 : 301,104.12 = 122,677.53 : x
  2. Step 2: Convert to fraction form
    218,171.52/301,104.12 = 122,677.53/x
  3. Step 3: Cross multiply
    218,171.52x = 301,104.12 × 122,677.53
  4. Step 4: Simplify right side
    218,171.52x = 36,938,709,101.04
  5. Step 5: Solve for x
    x = 36,938,709,101.04/218,171.52
  6. Step 6: Final answer
    x = 169,310.41

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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.