Finding the Fourth Proportional to 389,361.74, 537,318.19 and 217,277.88
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Solution
The fourth proportional to 389,361.74, 537,318.19 and 217,277.88 is: 299,842.91
Step by Step Solution
- Step 1: Write the proportion equation
389,361.74 : 537,318.19 = 217,277.88 : x - Step 2: Convert to fraction form
389,361.74/537,318.19 = 217,277.88/x - Step 3: Cross multiply
389,361.74x = 537,318.19 × 217,277.88 - Step 4: Simplify right side
389,361.74x = 116,747,356,665.44 - Step 5: Solve for x
x = 116,747,356,665.44/389,361.74 - Step 6: Final answer
x = 299,842.91
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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.