Finding the Fourth Proportional to 388,479.93, 536,406.35 and 303,838.17
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Solution
The fourth proportional to 388,479.93, 536,406.35 and 303,838.17 is: 419,534.47
Step by Step Solution
- Step 1: Write the proportion equation
388,479.93 : 536,406.35 = 303,838.17 : x - Step 2: Convert to fraction form
388,479.93/536,406.35 = 303,838.17/x - Step 3: Cross multiply
388,479.93x = 536,406.35 × 303,838.17 - Step 4: Simplify right side
388,479.93x = 162,980,722,241.19 - Step 5: Solve for x
x = 162,980,722,241.19/388,479.93 - Step 6: Final answer
x = 419,534.47
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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.