Finding the Fourth Proportional to 261,309.36, 391,837.18 and 153,268.14
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Solution
The fourth proportional to 261,309.36, 391,837.18 and 153,268.14 is: 229,827.80
Step by Step Solution
- Step 1: Write the proportion equation
261,309.36 : 391,837.18 = 153,268.14 : x - Step 2: Convert to fraction form
261,309.36/391,837.18 = 153,268.14/x - Step 3: Cross multiply
261,309.36x = 391,837.18 × 153,268.14 - Step 4: Simplify right side
261,309.36x = 60,056,155,761.45 - Step 5: Solve for x
x = 60,056,155,761.45/261,309.36 - Step 6: Final answer
x = 229,827.80
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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.