Finding the Fourth Proportional to 275,905.97, 413,854.86 and 76,221.95
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Solution
The fourth proportional to 275,905.97, 413,854.86 and 76,221.95 is: 114,331.79
Step by Step Solution
- Step 1: Write the proportion equation
275,905.97 : 413,854.86 = 76,221.95 : x - Step 2: Convert to fraction form
275,905.97/413,854.86 = 76,221.95/x - Step 3: Cross multiply
275,905.97x = 413,854.86 × 76,221.95 - Step 4: Simplify right side
275,905.97x = 31,544,824,446.18 - Step 5: Solve for x
x = 31,544,824,446.18/275,905.97 - Step 6: Final answer
x = 114,331.79
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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.