Finding the Fourth Proportional to 324,515.64, 486,947.72 and 135,106.74
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Solution
The fourth proportional to 324,515.64, 486,947.72 and 135,106.74 is: 202,732.66
Step by Step Solution
- Step 1: Write the proportion equation
324,515.64 : 486,947.72 = 135,106.74 : x - Step 2: Convert to fraction form
324,515.64/486,947.72 = 135,106.74/x - Step 3: Cross multiply
324,515.64x = 486,947.72 × 135,106.74 - Step 4: Simplify right side
324,515.64x = 65,789,918,999.63 - Step 5: Solve for x
x = 65,789,918,999.63/324,515.64 - Step 6: Final answer
x = 202,732.66
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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.