Finding the Fourth Proportional to 657,338.99, 986,156.18 and 208,086.80
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Solution
The fourth proportional to 657,338.99, 986,156.18 and 208,086.80 is: 312,176.95
Step by Step Solution
- Step 1: Write the proportion equation
657,338.99 : 986,156.18 = 208,086.80 : x - Step 2: Convert to fraction form
657,338.99/986,156.18 = 208,086.80/x - Step 3: Cross multiply
657,338.99x = 986,156.18 × 208,086.80 - Step 4: Simplify right side
657,338.99x = 205,206,082,755.99 - Step 5: Solve for x
x = 205,206,082,755.99/657,338.99 - Step 6: Final answer
x = 312,176.95
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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.