Finding the Fourth Proportional to 221,318.02, 305,418.06 and 125,824.72
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Solution
The fourth proportional to 221,318.02, 305,418.06 and 125,824.72 is: 173,637.65
Step by Step Solution
- Step 1: Write the proportion equation
221,318.02 : 305,418.06 = 125,824.72 : x - Step 2: Convert to fraction form
221,318.02/305,418.06 = 125,824.72/x - Step 3: Cross multiply
221,318.02x = 305,418.06 × 125,824.72 - Step 4: Simplify right side
221,318.02x = 38,429,141,882.44 - Step 5: Solve for x
x = 38,429,141,882.44/221,318.02 - Step 6: Final answer
x = 173,637.65
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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.