Finding the Fourth Proportional to 339.93, 509.99 and 281.84
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Solution
The fourth proportional to 339.93, 509.99 and 281.84 is: 422.83
Step by Step Solution
- Step 1: Write the proportion equation
339.93 : 509.99 = 281.84 : x - Step 2: Convert to fraction form
339.93/509.99 = 281.84/x - Step 3: Cross multiply
339.93x = 509.99 × 281.84 - Step 4: Simplify right side
339.93x = 143,731.62 - Step 5: Solve for x
x = 143,731.62/339.93 - Step 6: Final answer
x = 422.83
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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.