Finding the Fourth Proportional to 266,136.99, 399,203.44 and 66,456.05
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Solution
The fourth proportional to 266,136.99, 399,203.44 and 66,456.05 is: 99,683.56
Step by Step Solution
- Step 1: Write the proportion equation
266,136.99 : 399,203.44 = 66,456.05 : x - Step 2: Convert to fraction form
266,136.99/399,203.44 = 66,456.05/x - Step 3: Cross multiply
266,136.99x = 399,203.44 × 66,456.05 - Step 4: Simplify right side
266,136.99x = 26,529,481,606.65 - Step 5: Solve for x
x = 26,529,481,606.65/266,136.99 - Step 6: Final answer
x = 99,683.56
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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.