Finding the Fourth Proportional to 221,073.75, 305,130.99 and 140,485.53
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Solution
The fourth proportional to 221,073.75, 305,130.99 and 140,485.53 is: 193,901.31
Step by Step Solution
- Step 1: Write the proportion equation
221,073.75 : 305,130.99 = 140,485.53 : x - Step 2: Convert to fraction form
221,073.75/305,130.99 = 140,485.53/x - Step 3: Cross multiply
221,073.75x = 305,130.99 × 140,485.53 - Step 4: Simplify right side
221,073.75x = 42,866,488,849.57 - Step 5: Solve for x
x = 42,866,488,849.57/221,073.75 - Step 6: Final answer
x = 193,901.31
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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.