Finding the Fourth Proportional to 339,505.79, 511,289.76 and 309,239.07
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Solution
The fourth proportional to 339,505.79, 511,289.76 and 309,239.07 is: 465,708.62
Step by Step Solution
- Step 1: Write the proportion equation
339,505.79 : 511,289.76 = 309,239.07 : x - Step 2: Convert to fraction form
339,505.79/511,289.76 = 309,239.07/x - Step 3: Cross multiply
339,505.79x = 511,289.76 × 309,239.07 - Step 4: Simplify right side
339,505.79x = 158,110,769,882.92 - Step 5: Solve for x
x = 158,110,769,882.92/339,505.79 - Step 6: Final answer
x = 465,708.62
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.