Finding the Fourth Proportional to 300,153.49, 450,064.08 and 122,785.09
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Solution
The fourth proportional to 300,153.49, 450,064.08 and 122,785.09 is: 184,109.66
Step by Step Solution
- Step 1: Write the proportion equation
300,153.49 : 450,064.08 = 122,785.09 : x - Step 2: Convert to fraction form
300,153.49/450,064.08 = 122,785.09/x - Step 3: Cross multiply
300,153.49x = 450,064.08 × 122,785.09 - Step 4: Simplify right side
300,153.49x = 55,261,157,443.41 - Step 5: Solve for x
x = 55,261,157,443.41/300,153.49 - Step 6: Final answer
x = 184,109.66
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1.5x scale
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.