Finding the Fourth Proportional to 287,710.96, 397,042.08 and 156,887.68
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Solution
The fourth proportional to 287,710.96, 397,042.08 and 156,887.68 is: 216,505.52
Step by Step Solution
- Step 1: Write the proportion equation
287,710.96 : 397,042.08 = 156,887.68 : x - Step 2: Convert to fraction form
287,710.96/397,042.08 = 156,887.68/x - Step 3: Cross multiply
287,710.96x = 397,042.08 × 156,887.68 - Step 4: Simplify right side
287,710.96x = 62,291,010,793.57 - Step 5: Solve for x
x = 62,291,010,793.57/287,710.96 - Step 6: Final answer
x = 216,505.52
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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.