Home / 325,890.96-488,836.86-89,235.69

Finding the Fourth Proportional to 325,890.96, 488,836.86 and 89,235.69

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Solution

The fourth proportional to 325,890.96, 488,836.86 and 89,235.69 is: 133,853.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,890.96 : 488,836.86 = 89,235.69 : x
  2. Step 2: Convert to fraction form
    325,890.96/488,836.86 = 89,235.69/x
  3. Step 3: Cross multiply
    325,890.96x = 488,836.86 × 89,235.69
  4. Step 4: Simplify right side
    325,890.96x = 43,621,694,499.53
  5. Step 5: Solve for x
    x = 43,621,694,499.53/325,890.96
  6. Step 6: Final answer
    x = 133,853.65

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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.