Home / 351,811.90-485,499.18-190,670.86

Finding the Fourth Proportional to 351,811.90, 485,499.18 and 190,670.86

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Solution

The fourth proportional to 351,811.90, 485,499.18 and 190,670.86 is: 263,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,811.90 : 485,499.18 = 190,670.86 : x
  2. Step 2: Convert to fraction form
    351,811.90/485,499.18 = 190,670.86/x
  3. Step 3: Cross multiply
    351,811.90x = 485,499.18 × 190,670.86
  4. Step 4: Simplify right side
    351,811.90x = 92,570,546,179.89
  5. Step 5: Solve for x
    x = 92,570,546,179.89/351,811.90
  6. Step 6: Final answer
    x = 263,125.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.