Finding the Fourth Proportional to 388,708.87, 536,234.97 and 227,465.01
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Solution
The fourth proportional to 388,708.87, 536,234.97 and 227,465.01 is: 313,794.47
Step by Step Solution
- Step 1: Write the proportion equation
388,708.87 : 536,234.97 = 227,465.01 : x - Step 2: Convert to fraction form
388,708.87/536,234.97 = 227,465.01/x - Step 3: Cross multiply
388,708.87x = 536,234.97 × 227,465.01 - Step 4: Simplify right side
388,708.87x = 121,974,692,813.40 - Step 5: Solve for x
x = 121,974,692,813.40/388,708.87 - Step 6: Final answer
x = 313,794.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.