Finding the Fourth Proportional to 291,189.94, 436,562.57 and 91,394.74
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Solution
The fourth proportional to 291,189.94, 436,562.57 and 91,394.74 is: 137,022.32
Step by Step Solution
- Step 1: Write the proportion equation
291,189.94 : 436,562.57 = 91,394.74 : x - Step 2: Convert to fraction form
291,189.94/436,562.57 = 91,394.74/x - Step 3: Cross multiply
291,189.94x = 436,562.57 × 91,394.74 - Step 4: Simplify right side
291,189.94x = 39,899,520,383.31 - Step 5: Solve for x
x = 39,899,520,383.31/291,189.94 - Step 6: Final answer
x = 137,022.32
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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.