Finding the Fourth Proportional to 270,657.70, 405,986.55 and 122,913.70
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Solution
The fourth proportional to 270,657.70, 405,986.55 and 122,913.70 is: 184,370.55
Step by Step Solution
- Step 1: Write the proportion equation
270,657.70 : 405,986.55 = 122,913.70 : x - Step 2: Convert to fraction form
270,657.70/405,986.55 = 122,913.70/x - Step 3: Cross multiply
270,657.70x = 405,986.55 × 122,913.70 - Step 4: Simplify right side
270,657.70x = 49,901,309,010.74 - Step 5: Solve for x
x = 49,901,309,010.74/270,657.70 - Step 6: Final answer
x = 184,370.55
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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.