Finding the Fourth Proportional to 139,048.74, 208,603.50 and 50,292.99
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Solution
The fourth proportional to 139,048.74, 208,603.50 and 50,292.99 is: 75,450.48
Step by Step Solution
- Step 1: Write the proportion equation
139,048.74 : 208,603.50 = 50,292.99 : x - Step 2: Convert to fraction form
139,048.74/208,603.50 = 50,292.99/x - Step 3: Cross multiply
139,048.74x = 208,603.50 × 50,292.99 - Step 4: Simplify right side
139,048.74x = 10,491,293,739.47 - Step 5: Solve for x
x = 10,491,293,739.47/139,048.74 - Step 6: Final answer
x = 75,450.48
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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.