Finding the Fourth Proportional to 279,107.10, 418,660.65 and 268,220.70
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Solution
The fourth proportional to 279,107.10, 418,660.65 and 268,220.70 is: 402,331.05
Step by Step Solution
- Step 1: Write the proportion equation
279,107.10 : 418,660.65 = 268,220.70 : x - Step 2: Convert to fraction form
279,107.10/418,660.65 = 268,220.70/x - Step 3: Cross multiply
279,107.10x = 418,660.65 × 268,220.70 - Step 4: Simplify right side
279,107.10x = 112,293,452,605.46 - Step 5: Solve for x
x = 112,293,452,605.46/279,107.10 - Step 6: Final answer
x = 402,331.05
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1.5x scale
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.