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Finding the Fourth Proportional to 325,512.92, 488,345.52 and 100,861.58

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Solution

The fourth proportional to 325,512.92, 488,345.52 and 100,861.58 is: 151,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,512.92 : 488,345.52 = 100,861.58 : x
  2. Step 2: Convert to fraction form
    325,512.92/488,345.52 = 100,861.58/x
  3. Step 3: Cross multiply
    325,512.92x = 488,345.52 × 100,861.58
  4. Step 4: Simplify right side
    325,512.92x = 49,255,300,733.12
  5. Step 5: Solve for x
    x = 49,255,300,733.12/325,512.92
  6. Step 6: Final answer
    x = 151,315.96

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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.