Finding the Fourth Proportional to 221,612.55, 305,836.77 and 135,544.53
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Solution
The fourth proportional to 221,612.55, 305,836.77 and 135,544.53 is: 187,058.46
Step by Step Solution
- Step 1: Write the proportion equation
221,612.55 : 305,836.77 = 135,544.53 : x - Step 2: Convert to fraction form
221,612.55/305,836.77 = 135,544.53/x - Step 3: Cross multiply
221,612.55x = 305,836.77 × 135,544.53 - Step 4: Simplify right side
221,612.55x = 41,454,502,010.96 - Step 5: Solve for x
x = 41,454,502,010.96/221,612.55 - Step 6: Final answer
x = 187,058.46
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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.