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Finding the Fourth Proportional to 325,491.29, 488,212.63 and 100,853.45

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Solution

The fourth proportional to 325,491.29, 488,212.63 and 100,853.45 is: 151,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,491.29 : 488,212.63 = 100,853.45 : x
  2. Step 2: Convert to fraction form
    325,491.29/488,212.63 = 100,853.45/x
  3. Step 3: Cross multiply
    325,491.29x = 488,212.63 × 100,853.45
  4. Step 4: Simplify right side
    325,491.29x = 49,237,925,375.88
  5. Step 5: Solve for x
    x = 49,237,925,375.88/325,491.29
  6. Step 6: Final answer
    x = 151,272.64

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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.