Finding the Fourth Proportional to 403.15, 604.09 and 171.99
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Solution
The fourth proportional to 403.15, 604.09 and 171.99 is: 257.71
Step by Step Solution
- Step 1: Write the proportion equation
403.15 : 604.09 = 171.99 : x - Step 2: Convert to fraction form
403.15/604.09 = 171.99/x - Step 3: Cross multiply
403.15x = 604.09 × 171.99 - Step 4: Simplify right side
403.15x = 103,897.44 - Step 5: Solve for x
x = 103,897.44/403.15 - Step 6: Final answer
x = 257.71
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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.