Finding the Fourth Proportional to 152.89, 210.99 and 115.99
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Solution
The fourth proportional to 152.89, 210.99 and 115.99 is: 160.07
Step by Step Solution
- Step 1: Write the proportion equation
152.89 : 210.99 = 115.99 : x - Step 2: Convert to fraction form
152.89/210.99 = 115.99/x - Step 3: Cross multiply
152.89x = 210.99 × 115.99 - Step 4: Simplify right side
152.89x = 24,472.73 - Step 5: Solve for x
x = 24,472.73/152.89 - Step 6: Final answer
x = 160.07
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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.