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Finding the Fourth Proportional to 218,511.68, 301,523.04 and 123,016.64

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Solution

The fourth proportional to 218,511.68, 301,523.04 and 123,016.64 is: 169,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,511.68 : 301,523.04 = 123,016.64 : x
  2. Step 2: Convert to fraction form
    218,511.68/301,523.04 = 123,016.64/x
  3. Step 3: Cross multiply
    218,511.68x = 301,523.04 × 123,016.64
  4. Step 4: Simplify right side
    218,511.68x = 37,092,351,263.39
  5. Step 5: Solve for x
    x = 37,092,351,263.39/218,511.68
  6. Step 6: Final answer
    x = 169,749.97

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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.