Finding the Fourth Proportional to 201,644.60, 302,121.30 and 131,487.80
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Solution
The fourth proportional to 201,644.60, 302,121.30 and 131,487.80 is: 197,006.34
Step by Step Solution
- Step 1: Write the proportion equation
201,644.60 : 302,121.30 = 131,487.80 : x - Step 2: Convert to fraction form
201,644.60/302,121.30 = 131,487.80/x - Step 3: Cross multiply
201,644.60x = 302,121.30 × 131,487.80 - Step 4: Simplify right side
201,644.60x = 39,725,265,070.14 - Step 5: Solve for x
x = 39,725,265,070.14/201,644.60 - Step 6: Final answer
x = 197,006.34
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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.