Finding the Fourth Proportional to 177,921.36, 266,911.20 and 84,376.08
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Solution
The fourth proportional to 177,921.36, 266,911.20 and 84,376.08 is: 126,577.95
Step by Step Solution
- Step 1: Write the proportion equation
177,921.36 : 266,911.20 = 84,376.08 : x - Step 2: Convert to fraction form
177,921.36/266,911.20 = 84,376.08/x - Step 3: Cross multiply
177,921.36x = 266,911.20 × 84,376.08 - Step 4: Simplify right side
177,921.36x = 22,520,920,764.10 - Step 5: Solve for x
x = 22,520,920,764.10/177,921.36 - Step 6: Final answer
x = 126,577.95
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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.