Finding the Fourth Proportional to 279,048.38, 418,563.16 and 121,276.84
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Solution
The fourth proportional to 279,048.38, 418,563.16 and 121,276.84 is: 181,911.17
Step by Step Solution
- Step 1: Write the proportion equation
279,048.38 : 418,563.16 = 121,276.84 : x - Step 2: Convert to fraction form
279,048.38/418,563.16 = 121,276.84/x - Step 3: Cross multiply
279,048.38x = 418,563.16 × 121,276.84 - Step 4: Simplify right side
279,048.38x = 50,762,017,385.21 - Step 5: Solve for x
x = 50,762,017,385.21/279,048.38 - Step 6: Final answer
x = 181,911.17
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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.