Home / 850.07-1,275.12-272.95

Finding the Fourth Proportional to 850.07, 1,275.12 and 272.95

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Solution

The fourth proportional to 850.07, 1,275.12 and 272.95 is: 409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.07 : 1,275.12 = 272.95 : x
  2. Step 2: Convert to fraction form
    850.07/1,275.12 = 272.95/x
  3. Step 3: Cross multiply
    850.07x = 1,275.12 × 272.95
  4. Step 4: Simplify right side
    850.07x = 348,040.82
  5. Step 5: Solve for x
    x = 348,040.82/850.07
  6. Step 6: Final answer
    x = 409.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.