Finding the Fourth Proportional to 357.78, 537.26 and 221.70
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Solution
The fourth proportional to 357.78, 537.26 and 221.70 is: 332.92
Step by Step Solution
- Step 1: Write the proportion equation
357.78 : 537.26 = 221.70 : x - Step 2: Convert to fraction form
357.78/537.26 = 221.70/x - Step 3: Cross multiply
357.78x = 537.26 × 221.70 - Step 4: Simplify right side
357.78x = 119,110.54 - Step 5: Solve for x
x = 119,110.54/357.78 - Step 6: Final answer
x = 332.92
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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.