Finding the Fourth Proportional to 284,249.02, 392,261.12 and 156,921.88
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Solution
The fourth proportional to 284,249.02, 392,261.12 and 156,921.88 is: 216,550.80
Step by Step Solution
- Step 1: Write the proportion equation
284,249.02 : 392,261.12 = 156,921.88 : x - Step 2: Convert to fraction form
284,249.02/392,261.12 = 156,921.88/x - Step 3: Cross multiply
284,249.02x = 392,261.12 × 156,921.88 - Step 4: Simplify right side
284,249.02x = 61,554,352,401.31 - Step 5: Solve for x
x = 61,554,352,401.31/284,249.02 - Step 6: Final answer
x = 216,550.80
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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.