Finding the Fourth Proportional to 387,132.70, 580,779.87 and 195,115.05
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Solution
The fourth proportional to 387,132.70, 580,779.87 and 195,115.05 is: 292,713.31
Step by Step Solution
- Step 1: Write the proportion equation
387,132.70 : 580,779.87 = 195,115.05 : x - Step 2: Convert to fraction form
387,132.70/580,779.87 = 195,115.05/x - Step 3: Cross multiply
387,132.70x = 580,779.87 × 195,115.05 - Step 4: Simplify right side
387,132.70x = 113,318,893,374.04 - Step 5: Solve for x
x = 113,318,893,374.04/387,132.70 - Step 6: Final answer
x = 292,713.31
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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.