Finding the Fourth Proportional to 221,232.69, 305,228.88 and 130,558.05
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Solution
The fourth proportional to 221,232.69, 305,228.88 and 130,558.05 is: 180,127.48
Step by Step Solution
- Step 1: Write the proportion equation
221,232.69 : 305,228.88 = 130,558.05 : x - Step 2: Convert to fraction form
221,232.69/305,228.88 = 130,558.05/x - Step 3: Cross multiply
221,232.69x = 305,228.88 × 130,558.05 - Step 4: Simplify right side
221,232.69x = 39,850,087,376.48 - Step 5: Solve for x
x = 39,850,087,376.48/221,232.69 - Step 6: Final answer
x = 180,127.48
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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.