Finding the Fourth Proportional to 338.99, 510.98 and 319.17
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Solution
The fourth proportional to 338.99, 510.98 and 319.17 is: 481.11
Step by Step Solution
- Step 1: Write the proportion equation
338.99 : 510.98 = 319.17 : x - Step 2: Convert to fraction form
338.99/510.98 = 319.17/x - Step 3: Cross multiply
338.99x = 510.98 × 319.17 - Step 4: Simplify right side
338.99x = 163,088.19 - Step 5: Solve for x
x = 163,088.19/338.99 - Step 6: Final answer
x = 481.11
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.