Finding the Fourth Proportional to 438,524.21, 657,786.34 and 106,100.21
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Solution
The fourth proportional to 438,524.21, 657,786.34 and 106,100.21 is: 159,150.32
Step by Step Solution
- Step 1: Write the proportion equation
438,524.21 : 657,786.34 = 106,100.21 : x - Step 2: Convert to fraction form
438,524.21/657,786.34 = 106,100.21/x - Step 3: Cross multiply
438,524.21x = 657,786.34 × 106,100.21 - Step 4: Simplify right side
438,524.21x = 69,791,268,809.13 - Step 5: Solve for x
x = 69,791,268,809.13/438,524.21 - Step 6: Final answer
x = 159,150.32
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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.