Finding the Fourth Proportional to 205,140.99, 307,821.97 and 99,959.95
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Solution
The fourth proportional to 205,140.99, 307,821.97 and 99,959.95 is: 149,993.76
Step by Step Solution
- Step 1: Write the proportion equation
205,140.99 : 307,821.97 = 99,959.95 : x - Step 2: Convert to fraction form
205,140.99/307,821.97 = 99,959.95/x - Step 3: Cross multiply
205,140.99x = 307,821.97 × 99,959.95 - Step 4: Simplify right side
205,140.99x = 30,769,868,730.10 - Step 5: Solve for x
x = 30,769,868,730.10/205,140.99 - Step 6: Final answer
x = 149,993.76
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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.