Finding the Fourth Proportional to 358.02, 536.99 and 138.65
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Solution
The fourth proportional to 358.02, 536.99 and 138.65 is: 207.95
Step by Step Solution
- Step 1: Write the proportion equation
358.02 : 536.99 = 138.65 : x - Step 2: Convert to fraction form
358.02/536.99 = 138.65/x - Step 3: Cross multiply
358.02x = 536.99 × 138.65 - Step 4: Simplify right side
358.02x = 74,450.29 - Step 5: Solve for x
x = 74,450.29/358.02 - Step 6: Final answer
x = 207.95
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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.