Finding the Fourth Proportional to 388,394.06, 536,287.84 and 303,752.30
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Solution
The fourth proportional to 388,394.06, 536,287.84 and 303,752.30 is: 419,415.95
Step by Step Solution
- Step 1: Write the proportion equation
388,394.06 : 536,287.84 = 303,752.30 : x - Step 2: Convert to fraction form
388,394.06/536,287.84 = 303,752.30/x - Step 3: Cross multiply
388,394.06x = 536,287.84 × 303,752.30 - Step 4: Simplify right side
388,394.06x = 162,898,661,421.21 - Step 5: Solve for x
x = 162,898,661,421.21/388,394.06 - Step 6: Final answer
x = 419,415.95
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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.