Finding the Fourth Proportional to 291,709.75, 437,564.63 and 70,093.75
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Solution
The fourth proportional to 291,709.75, 437,564.63 and 70,093.75 is: 105,140.63
Step by Step Solution
- Step 1: Write the proportion equation
291,709.75 : 437,564.63 = 70,093.75 : x - Step 2: Convert to fraction form
291,709.75/437,564.63 = 70,093.75/x - Step 3: Cross multiply
291,709.75x = 437,564.63 × 70,093.75 - Step 4: Simplify right side
291,709.75x = 30,670,545,784.06 - Step 5: Solve for x
x = 30,670,545,784.06/291,709.75 - Step 6: Final answer
x = 105,140.63
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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.