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Finding the Fourth Proportional to 218,003.52, 300,840.84 and 122,508.84

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Solution

The fourth proportional to 218,003.52, 300,840.84 and 122,508.84 is: 169,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,003.52 : 300,840.84 = 122,508.84 : x
  2. Step 2: Convert to fraction form
    218,003.52/300,840.84 = 122,508.84/x
  3. Step 3: Cross multiply
    218,003.52x = 300,840.84 × 122,508.84
  4. Step 4: Simplify right side
    218,003.52x = 36,855,662,333.03
  5. Step 5: Solve for x
    x = 36,855,662,333.03/218,003.52
  6. Step 6: Final answer
    x = 169,059.94

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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.