Finding the Fourth Proportional to 407.96, 611.93 and 147.99
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Solution
The fourth proportional to 407.96, 611.93 and 147.99 is: 221.99
Step by Step Solution
- Step 1: Write the proportion equation
407.96 : 611.93 = 147.99 : x - Step 2: Convert to fraction form
407.96/611.93 = 147.99/x - Step 3: Cross multiply
407.96x = 611.93 × 147.99 - Step 4: Simplify right side
407.96x = 90,559.89 - Step 5: Solve for x
x = 90,559.89/407.96 - Step 6: Final answer
x = 221.99
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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.