Home / 850.15-1,274.73-302.23

Finding the Fourth Proportional to 850.15, 1,274.73 and 302.23

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Solution

The fourth proportional to 850.15, 1,274.73 and 302.23 is: 453.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.15 : 1,274.73 = 302.23 : x
  2. Step 2: Convert to fraction form
    850.15/1,274.73 = 302.23/x
  3. Step 3: Cross multiply
    850.15x = 1,274.73 × 302.23
  4. Step 4: Simplify right side
    850.15x = 385,261.65
  5. Step 5: Solve for x
    x = 385,261.65/850.15
  6. Step 6: Final answer
    x = 453.17

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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.