Finding the Fourth Proportional to 261,309.32, 391,699.27 and 177,077.99
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Solution
The fourth proportional to 261,309.32, 391,699.27 and 177,077.99 is: 265,437.60
Step by Step Solution
- Step 1: Write the proportion equation
261,309.32 : 391,699.27 = 177,077.99 : x - Step 2: Convert to fraction form
261,309.32/391,699.27 = 177,077.99/x - Step 3: Cross multiply
261,309.32x = 391,699.27 × 177,077.99 - Step 4: Simplify right side
261,309.32x = 69,361,319,416.07 - Step 5: Solve for x
x = 69,361,319,416.07/261,309.32 - Step 6: Final answer
x = 265,437.60
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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.