Finding the Fourth Proportional to 221,107.68, 305,136.81 and 125,630.55
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Solution
The fourth proportional to 221,107.68, 305,136.81 and 125,630.55 is: 173,374.82
Step by Step Solution
- Step 1: Write the proportion equation
221,107.68 : 305,136.81 = 125,630.55 : x - Step 2: Convert to fraction form
221,107.68/305,136.81 = 125,630.55/x - Step 3: Cross multiply
221,107.68x = 305,136.81 × 125,630.55 - Step 4: Simplify right side
221,107.68x = 38,334,505,265.55 - Step 5: Solve for x
x = 38,334,505,265.55/221,107.68 - Step 6: Final answer
x = 173,374.82
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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.