Finding the Fourth Proportional to 212,136.97, 292,812.27 and 139,595.80
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Solution
The fourth proportional to 212,136.97, 292,812.27 and 139,595.80 is: 192,683.83
Step by Step Solution
- Step 1: Write the proportion equation
212,136.97 : 292,812.27 = 139,595.80 : x - Step 2: Convert to fraction form
212,136.97/292,812.27 = 139,595.80/x - Step 3: Cross multiply
212,136.97x = 292,812.27 × 139,595.80 - Step 4: Simplify right side
212,136.97x = 40,875,363,080.47 - Step 5: Solve for x
x = 40,875,363,080.47/212,136.97 - Step 6: Final answer
x = 192,683.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.