Finding the Fourth Proportional to 177,621.30, 266,431.95 and 128,049.30
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Solution
The fourth proportional to 177,621.30, 266,431.95 and 128,049.30 is: 192,073.95
Step by Step Solution
- Step 1: Write the proportion equation
177,621.30 : 266,431.95 = 128,049.30 : x - Step 2: Convert to fraction form
177,621.30/266,431.95 = 128,049.30/x - Step 3: Cross multiply
177,621.30x = 266,431.95 × 128,049.30 - Step 4: Simplify right side
177,621.30x = 34,116,424,695.14 - Step 5: Solve for x
x = 34,116,424,695.14/177,621.30 - Step 6: Final answer
x = 192,073.95
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1.5x scale
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.