Finding the Fourth Proportional to 688.68, 1,032.99 and 201.75
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Solution
The fourth proportional to 688.68, 1,032.99 and 201.75 is: 302.62
Step by Step Solution
- Step 1: Write the proportion equation
688.68 : 1,032.99 = 201.75 : x - Step 2: Convert to fraction form
688.68/1,032.99 = 201.75/x - Step 3: Cross multiply
688.68x = 1,032.99 × 201.75 - Step 4: Simplify right side
688.68x = 208,405.73 - Step 5: Solve for x
x = 208,405.73/688.68 - Step 6: Final answer
x = 302.62
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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.