Finding the Fourth Proportional to 205,135.98, 307,841.58 and 72,016.68
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Solution
The fourth proportional to 205,135.98, 307,841.58 and 72,016.68 is: 108,073.33
Step by Step Solution
- Step 1: Write the proportion equation
205,135.98 : 307,841.58 = 72,016.68 : x - Step 2: Convert to fraction form
205,135.98/307,841.58 = 72,016.68/x - Step 3: Cross multiply
205,135.98x = 307,841.58 × 72,016.68 - Step 4: Simplify right side
205,135.98x = 22,169,728,557.55 - Step 5: Solve for x
x = 22,169,728,557.55/205,135.98 - Step 6: Final answer
x = 108,073.33
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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.