Finding the Fourth Proportional to 305,984.97, 458,649.32 and 147,996.09
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Solution
The fourth proportional to 305,984.97, 458,649.32 and 147,996.09 is: 221,835.42
Step by Step Solution
- Step 1: Write the proportion equation
305,984.97 : 458,649.32 = 147,996.09 : x - Step 2: Convert to fraction form
305,984.97/458,649.32 = 147,996.09/x - Step 3: Cross multiply
305,984.97x = 458,649.32 × 147,996.09 - Step 4: Simplify right side
305,984.97x = 67,878,305,301.18 - Step 5: Solve for x
x = 67,878,305,301.18/305,984.97 - Step 6: Final answer
x = 221,835.42
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1.5x scale
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.