Finding the Fourth Proportional to 427.08, 639.99 and 350.58
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Solution
The fourth proportional to 427.08, 639.99 and 350.58 is: 525.35
Step by Step Solution
- Step 1: Write the proportion equation
427.08 : 639.99 = 350.58 : x - Step 2: Convert to fraction form
427.08/639.99 = 350.58/x - Step 3: Cross multiply
427.08x = 639.99 × 350.58 - Step 4: Simplify right side
427.08x = 224,367.69 - Step 5: Solve for x
x = 224,367.69/427.08 - Step 6: Final answer
x = 525.35
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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.