Finding the Fourth Proportional to 192,778.56, 266,090.40 and 117,463.68
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Solution
The fourth proportional to 192,778.56, 266,090.40 and 117,463.68 is: 162,133.99
Step by Step Solution
- Step 1: Write the proportion equation
192,778.56 : 266,090.40 = 117,463.68 : x - Step 2: Convert to fraction form
192,778.56/266,090.40 = 117,463.68/x - Step 3: Cross multiply
192,778.56x = 266,090.40 × 117,463.68 - Step 4: Simplify right side
192,778.56x = 31,255,957,596.67 - Step 5: Solve for x
x = 31,255,957,596.67/192,778.56 - Step 6: Final answer
x = 162,133.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.