Finding the Fourth Proportional to 291,135.67, 436,701.07 and 80,773.63
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Solution
The fourth proportional to 291,135.67, 436,701.07 and 80,773.63 is: 121,159.77
Step by Step Solution
- Step 1: Write the proportion equation
291,135.67 : 436,701.07 = 80,773.63 : x - Step 2: Convert to fraction form
291,135.67/436,701.07 = 80,773.63/x - Step 3: Cross multiply
291,135.67x = 436,701.07 × 80,773.63 - Step 4: Simplify right side
291,135.67x = 35,273,930,648.78 - Step 5: Solve for x
x = 35,273,930,648.78/291,135.67 - Step 6: Final answer
x = 121,159.77
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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.