Finding the Fourth Proportional to 338.98, 508.08 and 155.99
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Solution
The fourth proportional to 338.98, 508.08 and 155.99 is: 233.81
Step by Step Solution
- Step 1: Write the proportion equation
338.98 : 508.08 = 155.99 : x - Step 2: Convert to fraction form
338.98/508.08 = 155.99/x - Step 3: Cross multiply
338.98x = 508.08 × 155.99 - Step 4: Simplify right side
338.98x = 79,256.82 - Step 5: Solve for x
x = 79,256.82/338.98 - Step 6: Final answer
x = 233.81
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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.