Finding the Fourth Proportional to 205,136.34, 307,841.95 and 72,016.99
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Solution
The fourth proportional to 205,136.34, 307,841.95 and 72,016.99 is: 108,073.74
Step by Step Solution
- Step 1: Write the proportion equation
205,136.34 : 307,841.95 = 72,016.99 : x - Step 2: Convert to fraction form
205,136.34/307,841.95 = 72,016.99/x - Step 3: Cross multiply
205,136.34x = 307,841.95 × 72,016.99 - Step 4: Simplify right side
205,136.34x = 22,169,850,634.73 - Step 5: Solve for x
x = 22,169,850,634.73/205,136.34 - Step 6: Final answer
x = 108,073.74
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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.