Finding the Fourth Proportional to 1,242.70, 1,864 and 376.99
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Solution
The fourth proportional to 1,242.70, 1,864 and 376.99 is: 565.47
Step by Step Solution
- Step 1: Write the proportion equation
1,242.70 : 1,864 = 376.99 : x - Step 2: Convert to fraction form
1,242.70/1,864 = 376.99/x - Step 3: Cross multiply
1,242.70x = 1,864 × 376.99 - Step 4: Simplify right side
1,242.70x = 702,709.36 - Step 5: Solve for x
x = 702,709.36/1,242.70 - Step 6: Final answer
x = 565.47
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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.