Finding the Fourth Proportional to 177,776.60, 266,276.10 and 138,021.80
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Solution
The fourth proportional to 177,776.60, 266,276.10 and 138,021.80 is: 206,730.84
Step by Step Solution
- Step 1: Write the proportion equation
177,776.60 : 266,276.10 = 138,021.80 : x - Step 2: Convert to fraction form
177,776.60/266,276.10 = 138,021.80/x - Step 3: Cross multiply
177,776.60x = 266,276.10 × 138,021.80 - Step 4: Simplify right side
177,776.60x = 36,751,906,618.98 - Step 5: Solve for x
x = 36,751,906,618.98/177,776.60 - Step 6: Final answer
x = 206,730.84
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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.