Finding the Fourth Proportional to 434.74, 599.99 and 257.77
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Solution
The fourth proportional to 434.74, 599.99 and 257.77 is: 355.75
Step by Step Solution
- Step 1: Write the proportion equation
434.74 : 599.99 = 257.77 : x - Step 2: Convert to fraction form
434.74/599.99 = 257.77/x - Step 3: Cross multiply
434.74x = 599.99 × 257.77 - Step 4: Simplify right side
434.74x = 154,659.42 - Step 5: Solve for x
x = 154,659.42/434.74 - Step 6: Final answer
x = 355.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.