Finding the Fourth Proportional to 388,790.92, 536,536.86 and 216,704.12
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Solution
The fourth proportional to 388,790.92, 536,536.86 and 216,704.12 is: 299,054.69
Step by Step Solution
- Step 1: Write the proportion equation
388,790.92 : 536,536.86 = 216,704.12 : x - Step 2: Convert to fraction form
388,790.92/536,536.86 = 216,704.12/x - Step 3: Cross multiply
388,790.92x = 536,536.86 × 216,704.12 - Step 4: Simplify right side
388,790.92x = 116,269,748,093.86 - Step 5: Solve for x
x = 116,269,748,093.86/388,790.92 - Step 6: Final answer
x = 299,054.69
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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.