Finding the Fourth Proportional to 221,235.59, 305,331.34 and 125,756.64
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Solution
The fourth proportional to 221,235.59, 305,331.34 and 125,756.64 is: 173,559.07
Step by Step Solution
- Step 1: Write the proportion equation
221,235.59 : 305,331.34 = 125,756.64 : x - Step 2: Convert to fraction form
221,235.59/305,331.34 = 125,756.64/x - Step 3: Cross multiply
221,235.59x = 305,331.34 × 125,756.64 - Step 4: Simplify right side
221,235.59x = 38,397,443,405.10 - Step 5: Solve for x
x = 38,397,443,405.10/221,235.59 - Step 6: Final answer
x = 173,559.07
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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.