Finding the Fourth Proportional to 291,454.73, 437,197.70 and 91,790.66
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Solution
The fourth proportional to 291,454.73, 437,197.70 and 91,790.66 is: 137,690.90
Step by Step Solution
- Step 1: Write the proportion equation
291,454.73 : 437,197.70 = 91,790.66 : x - Step 2: Convert to fraction form
291,454.73/437,197.70 = 91,790.66/x - Step 3: Cross multiply
291,454.73x = 437,197.70 × 91,790.66 - Step 4: Simplify right side
291,454.73x = 40,130,665,433.48 - Step 5: Solve for x
x = 40,130,665,433.48/291,454.73 - Step 6: Final answer
x = 137,690.90
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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.