Home / 351,631.86-485,254.30-190,486.79

Finding the Fourth Proportional to 351,631.86, 485,254.30 and 190,486.79

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Solution

The fourth proportional to 351,631.86, 485,254.30 and 190,486.79 is: 262,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,631.86 : 485,254.30 = 190,486.79 : x
  2. Step 2: Convert to fraction form
    351,631.86/485,254.30 = 190,486.79/x
  3. Step 3: Cross multiply
    351,631.86x = 485,254.30 × 190,486.79
  4. Step 4: Simplify right side
    351,631.86x = 92,434,533,940.70
  5. Step 5: Solve for x
    x = 92,434,533,940.70/351,631.86
  6. Step 6: Final answer
    x = 262,873.03

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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.