Finding the Fourth Proportional to 391,335.18, 586,996.36 and 154,679.91
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Solution
The fourth proportional to 391,335.18, 586,996.36 and 154,679.91 is: 232,017.33
Step by Step Solution
- Step 1: Write the proportion equation
391,335.18 : 586,996.36 = 154,679.91 : x - Step 2: Convert to fraction form
391,335.18/586,996.36 = 154,679.91/x - Step 3: Cross multiply
391,335.18x = 586,996.36 × 154,679.91 - Step 4: Simplify right side
391,335.18x = 90,796,544,135.13 - Step 5: Solve for x
x = 90,796,544,135.13/391,335.18 - Step 6: Final answer
x = 232,017.33
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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.