Finding the Fourth Proportional to 199.99, 275.99 and 117.12
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Solution
The fourth proportional to 199.99, 275.99 and 117.12 is: 161.63
Step by Step Solution
- Step 1: Write the proportion equation
199.99 : 275.99 = 117.12 : x - Step 2: Convert to fraction form
199.99/275.99 = 117.12/x - Step 3: Cross multiply
199.99x = 275.99 × 117.12 - Step 4: Simplify right side
199.99x = 32,323.95 - Step 5: Solve for x
x = 32,323.95/199.99 - Step 6: Final answer
x = 161.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.