Finding the Fourth Proportional to 420,986.44, 631,952.93 and 168,445.14
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Solution
The fourth proportional to 420,986.44, 631,952.93 and 168,445.14 is: 252,857.07
Step by Step Solution
- Step 1: Write the proportion equation
420,986.44 : 631,952.93 = 168,445.14 : x - Step 2: Convert to fraction form
420,986.44/631,952.93 = 168,445.14/x - Step 3: Cross multiply
420,986.44x = 631,952.93 × 168,445.14 - Step 4: Simplify right side
420,986.44x = 106,449,399,767.26 - Step 5: Solve for x
x = 106,449,399,767.26/420,986.44 - Step 6: Final answer
x = 252,857.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.