Home / 321,925-482,480.46-281,845.81

Finding the Fourth Proportional to 321,925, 482,480.46 and 281,845.81

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Solution

The fourth proportional to 321,925, 482,480.46 and 281,845.81 is: 422,412.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,925 : 482,480.46 = 281,845.81 : x
  2. Step 2: Convert to fraction form
    321,925/482,480.46 = 281,845.81/x
  3. Step 3: Cross multiply
    321,925x = 482,480.46 × 281,845.81
  4. Step 4: Simplify right side
    321,925x = 135,985,096,057.87
  5. Step 5: Solve for x
    x = 135,985,096,057.87/321,925
  6. Step 6: Final answer
    x = 422,412.35

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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.