Finding the Fourth Proportional to 400,232.16, 552,316.08 and 218,947.68
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Solution
The fourth proportional to 400,232.16, 552,316.08 and 218,947.68 is: 302,145.45
Step by Step Solution
- Step 1: Write the proportion equation
400,232.16 : 552,316.08 = 218,947.68 : x - Step 2: Convert to fraction form
400,232.16/552,316.08 = 218,947.68/x - Step 3: Cross multiply
400,232.16x = 552,316.08 × 218,947.68 - Step 4: Simplify right side
400,232.16x = 120,928,324,342.69 - Step 5: Solve for x
x = 120,928,324,342.69/400,232.16 - Step 6: Final answer
x = 302,145.45
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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.