Finding the Fourth Proportional to 340.91, 511.43 and 309.99
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Solution
The fourth proportional to 340.91, 511.43 and 309.99 is: 465.05
Step by Step Solution
- Step 1: Write the proportion equation
340.91 : 511.43 = 309.99 : x - Step 2: Convert to fraction form
340.91/511.43 = 309.99/x - Step 3: Cross multiply
340.91x = 511.43 × 309.99 - Step 4: Simplify right side
340.91x = 158,536.64 - Step 5: Solve for x
x = 158,536.64/340.91 - Step 6: Final answer
x = 465.05
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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.