Finding the Fourth Proportional to 284,638.08, 392,776.92 and 157,313.64
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Solution
The fourth proportional to 284,638.08, 392,776.92 and 157,313.64 is: 217,079.76
Step by Step Solution
- Step 1: Write the proportion equation
284,638.08 : 392,776.92 = 157,313.64 : x - Step 2: Convert to fraction form
284,638.08/392,776.92 = 157,313.64/x - Step 3: Cross multiply
284,638.08x = 392,776.92 × 157,313.64 - Step 4: Simplify right side
284,638.08x = 61,789,166,993.19 - Step 5: Solve for x
x = 61,789,166,993.19/284,638.08 - Step 6: Final answer
x = 217,079.76
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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.