Finding the Fourth Proportional to 358.99, 538.58 and 115.58
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Solution
The fourth proportional to 358.99, 538.58 and 115.58 is: 173.41
Step by Step Solution
- Step 1: Write the proportion equation
358.99 : 538.58 = 115.58 : x - Step 2: Convert to fraction form
358.99/538.58 = 115.58/x - Step 3: Cross multiply
358.99x = 538.58 × 115.58 - Step 4: Simplify right side
358.99x = 62,250.71 - Step 5: Solve for x
x = 62,250.71/358.99 - Step 6: Final answer
x = 173.41
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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.