Finding the Fourth Proportional to 202,539.13, 279,503.99 and 113,115.13
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Solution
The fourth proportional to 202,539.13, 279,503.99 and 113,115.13 is: 156,098.87
Step by Step Solution
- Step 1: Write the proportion equation
202,539.13 : 279,503.99 = 113,115.13 : x - Step 2: Convert to fraction form
202,539.13/279,503.99 = 113,115.13/x - Step 3: Cross multiply
202,539.13x = 279,503.99 × 113,115.13 - Step 4: Simplify right side
202,539.13x = 31,616,130,164.37 - Step 5: Solve for x
x = 31,616,130,164.37/202,539.13 - Step 6: Final answer
x = 156,098.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.