Finding the Fourth Proportional to 291.21, 437.13 and 117.99
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Solution
The fourth proportional to 291.21, 437.13 and 117.99 is: 177.11
Step by Step Solution
- Step 1: Write the proportion equation
291.21 : 437.13 = 117.99 : x - Step 2: Convert to fraction form
291.21/437.13 = 117.99/x - Step 3: Cross multiply
291.21x = 437.13 × 117.99 - Step 4: Simplify right side
291.21x = 51,576.97 - Step 5: Solve for x
x = 51,576.97/291.21 - Step 6: Final answer
x = 177.11
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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.