Finding the Fourth Proportional to 177,859.40, 266,408.60 and 143,979.12
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Solution
The fourth proportional to 177,859.40, 266,408.60 and 143,979.12 is: 215,660.66
Step by Step Solution
- Step 1: Write the proportion equation
177,859.40 : 266,408.60 = 143,979.12 : x - Step 2: Convert to fraction form
177,859.40/266,408.60 = 143,979.12/x - Step 3: Cross multiply
177,859.40x = 266,408.60 × 143,979.12 - Step 4: Simplify right side
177,859.40x = 38,357,275,068.54 - Step 5: Solve for x
x = 38,357,275,068.54/177,859.40 - Step 6: Final answer
x = 215,660.66
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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.