Finding the Fourth Proportional to 519.25, 778.95 and 153.99
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Solution
The fourth proportional to 519.25, 778.95 and 153.99 is: 231.01
Step by Step Solution
- Step 1: Write the proportion equation
519.25 : 778.95 = 153.99 : x - Step 2: Convert to fraction form
519.25/778.95 = 153.99/x - Step 3: Cross multiply
519.25x = 778.95 × 153.99 - Step 4: Simplify right side
519.25x = 119,950.51 - Step 5: Solve for x
x = 119,950.51/519.25 - Step 6: Final answer
x = 231.01
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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.