Finding the Fourth Proportional to 192,777.88, 266,186.46 and 128,309.08
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Solution
The fourth proportional to 192,777.88, 266,186.46 and 128,309.08 is: 177,168.35
Step by Step Solution
- Step 1: Write the proportion equation
192,777.88 : 266,186.46 = 128,309.08 : x - Step 2: Convert to fraction form
192,777.88/266,186.46 = 128,309.08/x - Step 3: Cross multiply
192,777.88x = 266,186.46 × 128,309.08 - Step 4: Simplify right side
192,777.88x = 34,154,139,791.06 - Step 5: Solve for x
x = 34,154,139,791.06/192,777.88 - Step 6: Final answer
x = 177,168.35
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1.5x scale
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.