Finding the Fourth Proportional to 408.39, 612.62 and 352.99
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Solution
The fourth proportional to 408.39, 612.62 and 352.99 is: 529.52
Step by Step Solution
- Step 1: Write the proportion equation
408.39 : 612.62 = 352.99 : x - Step 2: Convert to fraction form
408.39/612.62 = 352.99/x - Step 3: Cross multiply
408.39x = 612.62 × 352.99 - Step 4: Simplify right side
408.39x = 216,248.73 - Step 5: Solve for x
x = 216,248.73/408.39 - Step 6: Final answer
x = 529.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.