Home / 351,827.58-485,520.12-190,680.90

Finding the Fourth Proportional to 351,827.58, 485,520.12 and 190,680.90

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Solution

The fourth proportional to 351,827.58, 485,520.12 and 190,680.90 is: 263,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,827.58 : 485,520.12 = 190,680.90 : x
  2. Step 2: Convert to fraction form
    351,827.58/485,520.12 = 190,680.90/x
  3. Step 3: Cross multiply
    351,827.58x = 485,520.12 × 190,680.90
  4. Step 4: Simplify right side
    351,827.58x = 92,579,413,449.71
  5. Step 5: Solve for x
    x = 92,579,413,449.71/351,827.58
  6. Step 6: Final answer
    x = 263,138.59

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1.5x scale

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.