Finding the Fourth Proportional to 291,453.15, 437,195.33 and 91,789.09
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Solution
The fourth proportional to 291,453.15, 437,195.33 and 91,789.09 is: 137,688.55
Step by Step Solution
- Step 1: Write the proportion equation
291,453.15 : 437,195.33 = 91,789.09 : x - Step 2: Convert to fraction form
291,453.15/437,195.33 = 91,789.09/x - Step 3: Cross multiply
291,453.15x = 437,195.33 × 91,789.09 - Step 4: Simplify right side
291,453.15x = 40,129,760,285.23 - Step 5: Solve for x
x = 40,129,760,285.23/291,453.15 - Step 6: Final answer
x = 137,688.55
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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.