Finding the Fourth Proportional to 415,155.17, 572,920.49 and 245,405.09
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Solution
The fourth proportional to 415,155.17, 572,920.49 and 245,405.09 is: 338,662.78
Step by Step Solution
- Step 1: Write the proportion equation
415,155.17 : 572,920.49 = 245,405.09 : x - Step 2: Convert to fraction form
415,155.17/572,920.49 = 245,405.09/x - Step 3: Cross multiply
415,155.17x = 572,920.49 × 245,405.09 - Step 4: Simplify right side
415,155.17x = 140,597,604,411.29 - Step 5: Solve for x
x = 140,597,604,411.29/415,155.17 - Step 6: Final answer
x = 338,662.78
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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.