Finding the Fourth Proportional to 338.84, 508.08 and 210.68
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Solution
The fourth proportional to 338.84, 508.08 and 210.68 is: 315.91
Step by Step Solution
- Step 1: Write the proportion equation
338.84 : 508.08 = 210.68 : x - Step 2: Convert to fraction form
338.84/508.08 = 210.68/x - Step 3: Cross multiply
338.84x = 508.08 × 210.68 - Step 4: Simplify right side
338.84x = 107,042.29 - Step 5: Solve for x
x = 107,042.29/338.84 - Step 6: Final answer
x = 315.91
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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.