Finding the Fourth Proportional to 210,953.28, 316,433.16 and 84,604.68
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Solution
The fourth proportional to 210,953.28, 316,433.16 and 84,604.68 is: 126,908.32
Step by Step Solution
- Step 1: Write the proportion equation
210,953.28 : 316,433.16 = 84,604.68 : x - Step 2: Convert to fraction form
210,953.28/316,433.16 = 84,604.68/x - Step 3: Cross multiply
210,953.28x = 316,433.16 × 84,604.68 - Step 4: Simplify right side
210,953.28x = 26,771,726,243.19 - Step 5: Solve for x
x = 26,771,726,243.19/210,953.28 - Step 6: Final answer
x = 126,908.32
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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.