Finding the Fourth Proportional to 261,206.08, 391,809.16 and 74,193.28
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Solution
The fourth proportional to 261,206.08, 391,809.16 and 74,193.28 is: 111,289.93
Step by Step Solution
- Step 1: Write the proportion equation
261,206.08 : 391,809.16 = 74,193.28 : x - Step 2: Convert to fraction form
261,206.08/391,809.16 = 74,193.28/x - Step 3: Cross multiply
261,206.08x = 391,809.16 × 74,193.28 - Step 4: Simplify right side
261,206.08x = 29,069,606,714.44 - Step 5: Solve for x
x = 29,069,606,714.44/261,206.08 - Step 6: Final answer
x = 111,289.93
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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.