Finding the Fourth Proportional to 281,027.26, 387,809.40 and 153,700.12
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Solution
The fourth proportional to 281,027.26, 387,809.40 and 153,700.12 is: 212,101.67
Step by Step Solution
- Step 1: Write the proportion equation
281,027.26 : 387,809.40 = 153,700.12 : x - Step 2: Convert to fraction form
281,027.26/387,809.40 = 153,700.12/x - Step 3: Cross multiply
281,027.26x = 387,809.40 × 153,700.12 - Step 4: Simplify right side
281,027.26x = 59,606,351,317.13 - Step 5: Solve for x
x = 59,606,351,317.13/281,027.26 - Step 6: Final answer
x = 212,101.67
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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.