Finding the Fourth Proportional to 291,654.12, 402,511.26 and 170,787.96
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Solution
The fourth proportional to 291,654.12, 402,511.26 and 170,787.96 is: 235,704.12
Step by Step Solution
- Step 1: Write the proportion equation
291,654.12 : 402,511.26 = 170,787.96 : x - Step 2: Convert to fraction form
291,654.12/402,511.26 = 170,787.96/x - Step 3: Cross multiply
291,654.12x = 402,511.26 × 170,787.96 - Step 4: Simplify right side
291,654.12x = 68,744,076,972.43 - Step 5: Solve for x
x = 68,744,076,972.43/291,654.12 - Step 6: Final answer
x = 235,704.12
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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.