Finding the Fourth Proportional to 291,723.80, 437,585.70 and 70,107.80
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Solution
The fourth proportional to 291,723.80, 437,585.70 and 70,107.80 is: 105,161.70
Step by Step Solution
- Step 1: Write the proportion equation
291,723.80 : 437,585.70 = 70,107.80 : x - Step 2: Convert to fraction form
291,723.80/437,585.70 = 70,107.80/x - Step 3: Cross multiply
291,723.80x = 437,585.70 × 70,107.80 - Step 4: Simplify right side
291,723.80x = 30,678,170,738.46 - Step 5: Solve for x
x = 30,678,170,738.46/291,723.80 - Step 6: Final answer
x = 105,161.70
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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.