Finding the Fourth Proportional to 542,495.34, 813,776.79 and 143,136.53
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Solution
The fourth proportional to 542,495.34, 813,776.79 and 143,136.53 is: 214,713.70
Step by Step Solution
- Step 1: Write the proportion equation
542,495.34 : 813,776.79 = 143,136.53 : x - Step 2: Convert to fraction form
542,495.34/813,776.79 = 143,136.53/x - Step 3: Cross multiply
542,495.34x = 813,776.79 × 143,136.53 - Step 4: Simplify right side
542,495.34x = 116,481,181,846.26 - Step 5: Solve for x
x = 116,481,181,846.26/542,495.34 - Step 6: Final answer
x = 214,713.70
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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.