Finding the Fourth Proportional to 431,448.96, 647,374.08 and 165,121.68
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Solution
The fourth proportional to 431,448.96, 647,374.08 and 165,121.68 is: 247,759.31
Step by Step Solution
- Step 1: Write the proportion equation
431,448.96 : 647,374.08 = 165,121.68 : x - Step 2: Convert to fraction form
431,448.96/647,374.08 = 165,121.68/x - Step 3: Cross multiply
431,448.96x = 647,374.08 × 165,121.68 - Step 4: Simplify right side
431,448.96x = 106,895,495,678.05 - Step 5: Solve for x
x = 106,895,495,678.05/431,448.96 - Step 6: Final answer
x = 247,759.31
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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.