Finding the Fourth Proportional to 301,136.78, 450,916.05 and 211,907.18
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Solution
The fourth proportional to 301,136.78, 450,916.05 and 211,907.18 is: 317,305.47
Step by Step Solution
- Step 1: Write the proportion equation
301,136.78 : 450,916.05 = 211,907.18 : x - Step 2: Convert to fraction form
301,136.78/450,916.05 = 211,907.18/x - Step 3: Cross multiply
301,136.78x = 450,916.05 × 211,907.18 - Step 4: Simplify right side
301,136.78x = 95,552,348,572.24 - Step 5: Solve for x
x = 95,552,348,572.24/301,136.78 - Step 6: Final answer
x = 317,305.47
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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.