Finding the Fourth Proportional to 391,051.97, 586,799.87 and 211,135.01
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Solution
The fourth proportional to 391,051.97, 586,799.87 and 211,135.01 is: 316,822.32
Step by Step Solution
- Step 1: Write the proportion equation
391,051.97 : 586,799.87 = 211,135.01 : x - Step 2: Convert to fraction form
391,051.97/586,799.87 = 211,135.01/x - Step 3: Cross multiply
391,051.97x = 586,799.87 × 211,135.01 - Step 4: Simplify right side
391,051.97x = 123,893,992,430.77 - Step 5: Solve for x
x = 123,893,992,430.77/391,051.97 - Step 6: Final answer
x = 316,822.32
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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.