Finding the Fourth Proportional to 307,953.60, 424,988.07 and 177,131.01
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Solution
The fourth proportional to 307,953.60, 424,988.07 and 177,131.01 is: 244,447.75
Step by Step Solution
- Step 1: Write the proportion equation
307,953.60 : 424,988.07 = 177,131.01 : x - Step 2: Convert to fraction form
307,953.60/424,988.07 = 177,131.01/x - Step 3: Cross multiply
307,953.60x = 424,988.07 × 177,131.01 - Step 4: Simplify right side
307,953.60x = 75,278,566,077.05 - Step 5: Solve for x
x = 75,278,566,077.05/307,953.60 - Step 6: Final answer
x = 244,447.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.