Finding the Fourth Proportional to 215,348.12, 322,666.74 and 125,137.62
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Solution
The fourth proportional to 215,348.12, 322,666.74 and 125,137.62 is: 187,499.89
Step by Step Solution
- Step 1: Write the proportion equation
215,348.12 : 322,666.74 = 125,137.62 : x - Step 2: Convert to fraction form
215,348.12/322,666.74 = 125,137.62/x - Step 3: Cross multiply
215,348.12x = 322,666.74 × 125,137.62 - Step 4: Simplify right side
215,348.12x = 40,377,747,896.76 - Step 5: Solve for x
x = 40,377,747,896.76/215,348.12 - Step 6: Final answer
x = 187,499.89
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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.