Finding the Fourth Proportional to 657.18, 985.85 and 194.99
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Solution
The fourth proportional to 657.18, 985.85 and 194.99 is: 292.50
Step by Step Solution
- Step 1: Write the proportion equation
657.18 : 985.85 = 194.99 : x - Step 2: Convert to fraction form
657.18/985.85 = 194.99/x - Step 3: Cross multiply
657.18x = 985.85 × 194.99 - Step 4: Simplify right side
657.18x = 192,224.99 - Step 5: Solve for x
x = 192,224.99/657.18 - Step 6: Final answer
x = 292.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.