Finding the Fourth Proportional to 872.21, 1,307.99 and 352.08
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Solution
The fourth proportional to 872.21, 1,307.99 and 352.08 is: 527.99
Step by Step Solution
- Step 1: Write the proportion equation
872.21 : 1,307.99 = 352.08 : x - Step 2: Convert to fraction form
872.21/1,307.99 = 352.08/x - Step 3: Cross multiply
872.21x = 1,307.99 × 352.08 - Step 4: Simplify right side
872.21x = 460,518.00 - Step 5: Solve for x
x = 460,518.00/872.21 - Step 6: Final answer
x = 527.99
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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.