Home / 351,977.68-485,724.12-190,829.68

Finding the Fourth Proportional to 351,977.68, 485,724.12 and 190,829.68

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Solution

The fourth proportional to 351,977.68, 485,724.12 and 190,829.68 is: 263,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,977.68 : 485,724.12 = 190,829.68 : x
  2. Step 2: Convert to fraction form
    351,977.68/485,724.12 = 190,829.68/x
  3. Step 3: Cross multiply
    351,977.68x = 485,724.12 × 190,829.68
  4. Step 4: Simplify right side
    351,977.68x = 92,690,578,387.88
  5. Step 5: Solve for x
    x = 92,690,578,387.88/351,977.68
  6. Step 6: Final answer
    x = 263,342.21

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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.