Finding the Fourth Proportional to 218,232.06, 301,125.52 and 122,720.30
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Solution
The fourth proportional to 218,232.06, 301,125.52 and 122,720.30 is: 169,334.49
Step by Step Solution
- Step 1: Write the proportion equation
218,232.06 : 301,125.52 = 122,720.30 : x - Step 2: Convert to fraction form
218,232.06/301,125.52 = 122,720.30/x - Step 3: Cross multiply
218,232.06x = 301,125.52 × 122,720.30 - Step 4: Simplify right side
218,232.06x = 36,954,214,152.06 - Step 5: Solve for x
x = 36,954,214,152.06/218,232.06 - Step 6: Final answer
x = 169,334.49
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1.5x scale
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.