Finding the Fourth Proportional to 177,631.80, 266,447.70 and 128,059.80
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Solution
The fourth proportional to 177,631.80, 266,447.70 and 128,059.80 is: 192,089.70
Step by Step Solution
- Step 1: Write the proportion equation
177,631.80 : 266,447.70 = 128,059.80 : x - Step 2: Convert to fraction form
177,631.80/266,447.70 = 128,059.80/x - Step 3: Cross multiply
177,631.80x = 266,447.70 × 128,059.80 - Step 4: Simplify right side
177,631.80x = 34,121,239,172.46 - Step 5: Solve for x
x = 34,121,239,172.46/177,631.80 - Step 6: Final answer
x = 192,089.70
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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.