Home / 1,211.51-1,817.31-334.08

Finding the Fourth Proportional to 1,211.51, 1,817.31 and 334.08

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Solution

The fourth proportional to 1,211.51, 1,817.31 and 334.08 is: 501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.51 : 1,817.31 = 334.08 : x
  2. Step 2: Convert to fraction form
    1,211.51/1,817.31 = 334.08/x
  3. Step 3: Cross multiply
    1,211.51x = 1,817.31 × 334.08
  4. Step 4: Simplify right side
    1,211.51x = 607,126.92
  5. Step 5: Solve for x
    x = 607,126.92/1,211.51
  6. Step 6: Final answer
    x = 501.13

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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.