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Finding the Fourth Proportional to 325,642.80, 488,533.86 and 100,998.30

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Solution

The fourth proportional to 325,642.80, 488,533.86 and 100,998.30 is: 151,519.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,642.80 : 488,533.86 = 100,998.30 : x
  2. Step 2: Convert to fraction form
    325,642.80/488,533.86 = 100,998.30/x
  3. Step 3: Cross multiply
    325,642.80x = 488,533.86 × 100,998.30
  4. Step 4: Simplify right side
    325,642.80x = 49,341,089,352.44
  5. Step 5: Solve for x
    x = 49,341,089,352.44/325,642.80
  6. Step 6: Final answer
    x = 151,519.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.