Home / 351,867.20-485,641.74-200,964.20

Finding the Fourth Proportional to 351,867.20, 485,641.74 and 200,964.20

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Solution

The fourth proportional to 351,867.20, 485,641.74 and 200,964.20 is: 277,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,867.20 : 485,641.74 = 200,964.20 : x
  2. Step 2: Convert to fraction form
    351,867.20/485,641.74 = 200,964.20/x
  3. Step 3: Cross multiply
    351,867.20x = 485,641.74 × 200,964.20
  4. Step 4: Simplify right side
    351,867.20x = 97,596,603,765.71
  5. Step 5: Solve for x
    x = 97,596,603,765.71/351,867.20
  6. Step 6: Final answer
    x = 277,367.72

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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.