Finding the Fourth Proportional to 388,790.42, 536,536.17 and 216,703.62
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Solution
The fourth proportional to 388,790.42, 536,536.17 and 216,703.62 is: 299,054.00
Step by Step Solution
- Step 1: Write the proportion equation
388,790.42 : 536,536.17 = 216,703.62 : x - Step 2: Convert to fraction form
388,790.42/536,536.17 = 216,703.62/x - Step 3: Cross multiply
388,790.42x = 536,536.17 × 216,703.62 - Step 4: Simplify right side
388,790.42x = 116,269,330,299.94 - Step 5: Solve for x
x = 116,269,330,299.94/388,790.42 - Step 6: Final answer
x = 299,054.00
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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.