Finding the Fourth Proportional to 471.29, 707.09 and 239.99
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Solution
The fourth proportional to 471.29, 707.09 and 239.99 is: 360.06
Step by Step Solution
- Step 1: Write the proportion equation
471.29 : 707.09 = 239.99 : x - Step 2: Convert to fraction form
471.29/707.09 = 239.99/x - Step 3: Cross multiply
471.29x = 707.09 × 239.99 - Step 4: Simplify right side
471.29x = 169,689.79 - Step 5: Solve for x
x = 169,689.79/471.29 - Step 6: Final answer
x = 360.06
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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.