Finding the Fourth Proportional to 388,709.55, 536,397.48 and 214,274.12
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Solution
The fourth proportional to 388,709.55, 536,397.48 and 214,274.12 is: 295,686.32
Step by Step Solution
- Step 1: Write the proportion equation
388,709.55 : 536,397.48 = 214,274.12 : x - Step 2: Convert to fraction form
388,709.55/536,397.48 = 214,274.12/x - Step 3: Cross multiply
388,709.55x = 536,397.48 × 214,274.12 - Step 4: Simplify right side
388,709.55x = 114,936,095,315.23 - Step 5: Solve for x
x = 114,936,095,315.23/388,709.55 - Step 6: Final answer
x = 295,686.32
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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.