Finding the Fourth Proportional to 249,424.40, 374,136.60 and 99,687.80
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Solution
The fourth proportional to 249,424.40, 374,136.60 and 99,687.80 is: 149,531.70
Step by Step Solution
- Step 1: Write the proportion equation
249,424.40 : 374,136.60 = 99,687.80 : x - Step 2: Convert to fraction form
249,424.40/374,136.60 = 99,687.80/x - Step 3: Cross multiply
249,424.40x = 374,136.60 × 99,687.80 - Step 4: Simplify right side
249,424.40x = 37,296,854,553.48 - Step 5: Solve for x
x = 37,296,854,553.48/249,424.40 - Step 6: Final answer
x = 149,531.70
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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.