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Finding the Fourth Proportional to 218,023.58, 300,845.48 and 126,158.65

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Solution

The fourth proportional to 218,023.58, 300,845.48 and 126,158.65 is: 174,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,023.58 : 300,845.48 = 126,158.65 : x
  2. Step 2: Convert to fraction form
    218,023.58/300,845.48 = 126,158.65/x
  3. Step 3: Cross multiply
    218,023.58x = 300,845.48 × 126,158.65
  4. Step 4: Simplify right side
    218,023.58x = 37,954,258,232.50
  5. Step 5: Solve for x
    x = 37,954,258,232.50/218,023.58
  6. Step 6: Final answer
    x = 174,083.27

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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.