Finding the Fourth Proportional to 371,787.60, 557,683.26 and 91,304.88
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Solution
The fourth proportional to 371,787.60, 557,683.26 and 91,304.88 is: 136,957.78
Step by Step Solution
- Step 1: Write the proportion equation
371,787.60 : 557,683.26 = 91,304.88 : x - Step 2: Convert to fraction form
371,787.60/557,683.26 = 91,304.88/x - Step 3: Cross multiply
371,787.60x = 557,683.26 × 91,304.88 - Step 4: Simplify right side
371,787.60x = 50,919,203,132.31 - Step 5: Solve for x
x = 50,919,203,132.31/371,787.60 - Step 6: Final answer
x = 136,957.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.