Finding the Fourth Proportional to 221,106.60, 305,135.28 and 125,629.56
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Solution
The fourth proportional to 221,106.60, 305,135.28 and 125,629.56 is: 173,373.44
Step by Step Solution
- Step 1: Write the proportion equation
221,106.60 : 305,135.28 = 125,629.56 : x - Step 2: Convert to fraction form
221,106.60/305,135.28 = 125,629.56/x - Step 3: Cross multiply
221,106.60x = 305,135.28 × 125,629.56 - Step 4: Simplify right side
221,106.60x = 38,334,010,966.88 - Step 5: Solve for x
x = 38,334,010,966.88/221,106.60 - Step 6: Final answer
x = 173,373.44
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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.