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Finding the Fourth Proportional to 218,714.75, 301,826.37 and 118,112.75

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Solution

The fourth proportional to 218,714.75, 301,826.37 and 118,112.75 is: 162,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,714.75 : 301,826.37 = 118,112.75 : x
  2. Step 2: Convert to fraction form
    218,714.75/301,826.37 = 118,112.75/x
  3. Step 3: Cross multiply
    218,714.75x = 301,826.37 × 118,112.75
  4. Step 4: Simplify right side
    218,714.75x = 35,649,542,583.22
  5. Step 5: Solve for x
    x = 35,649,542,583.22/218,714.75
  6. Step 6: Final answer
    x = 162,995.60

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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.