Finding the Fourth Proportional to 201,829.80, 302,744.70 and 139,621.80
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Solution
The fourth proportional to 201,829.80, 302,744.70 and 139,621.80 is: 209,432.70
Step by Step Solution
- Step 1: Write the proportion equation
201,829.80 : 302,744.70 = 139,621.80 : x - Step 2: Convert to fraction form
201,829.80/302,744.70 = 139,621.80/x - Step 3: Cross multiply
201,829.80x = 302,744.70 × 139,621.80 - Step 4: Simplify right side
201,829.80x = 42,269,759,954.46 - Step 5: Solve for x
x = 42,269,759,954.46/201,829.80 - Step 6: Final answer
x = 209,432.70
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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.