Finding the Fourth Proportional to 199.93, 276.11 and 156.19
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Solution
The fourth proportional to 199.93, 276.11 and 156.19 is: 215.70
Step by Step Solution
- Step 1: Write the proportion equation
199.93 : 276.11 = 156.19 : x - Step 2: Convert to fraction form
199.93/276.11 = 156.19/x - Step 3: Cross multiply
199.93x = 276.11 × 156.19 - Step 4: Simplify right side
199.93x = 43,125.62 - Step 5: Solve for x
x = 43,125.62/199.93 - Step 6: Final answer
x = 215.70
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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.