Finding the Fourth Proportional to 291,119.68, 436,679.52 and 91,455.68
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Solution
The fourth proportional to 291,119.68, 436,679.52 and 91,455.68 is: 137,183.52
Step by Step Solution
- Step 1: Write the proportion equation
291,119.68 : 436,679.52 = 91,455.68 : x - Step 2: Convert to fraction form
291,119.68/436,679.52 = 91,455.68/x - Step 3: Cross multiply
291,119.68x = 436,679.52 × 91,455.68 - Step 4: Simplify right side
291,119.68x = 39,936,822,443.67 - Step 5: Solve for x
x = 39,936,822,443.67/291,119.68 - Step 6: Final answer
x = 137,183.52
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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.