Finding the Fourth Proportional to 153.98, 231.18 and 89.06
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Solution
The fourth proportional to 153.98, 231.18 and 89.06 is: 133.71
Step by Step Solution
- Step 1: Write the proportion equation
153.98 : 231.18 = 89.06 : x - Step 2: Convert to fraction form
153.98/231.18 = 89.06/x - Step 3: Cross multiply
153.98x = 231.18 × 89.06 - Step 4: Simplify right side
153.98x = 20,588.89 - Step 5: Solve for x
x = 20,588.89/153.98 - Step 6: Final answer
x = 133.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.