Finding the Fourth Proportional to 230,636.92, 318,271.74 and 135,207.18
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Solution
The fourth proportional to 230,636.92, 318,271.74 and 135,207.18 is: 186,581.68
Step by Step Solution
- Step 1: Write the proportion equation
230,636.92 : 318,271.74 = 135,207.18 : x - Step 2: Convert to fraction form
230,636.92/318,271.74 = 135,207.18/x - Step 3: Cross multiply
230,636.92x = 318,271.74 × 135,207.18 - Step 4: Simplify right side
230,636.92x = 43,032,624,439.09 - Step 5: Solve for x
x = 43,032,624,439.09/230,636.92 - Step 6: Final answer
x = 186,581.68
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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.