Finding the Fourth Proportional to 270,655.70, 405,983.55 and 122,911.70
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Solution
The fourth proportional to 270,655.70, 405,983.55 and 122,911.70 is: 184,367.55
Step by Step Solution
- Step 1: Write the proportion equation
270,655.70 : 405,983.55 = 122,911.70 : x - Step 2: Convert to fraction form
270,655.70/405,983.55 = 122,911.70/x - Step 3: Cross multiply
270,655.70x = 405,983.55 × 122,911.70 - Step 4: Simplify right side
270,655.70x = 49,900,128,302.54 - Step 5: Solve for x
x = 49,900,128,302.54/270,655.70 - Step 6: Final answer
x = 184,367.55
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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.