Finding the Fourth Proportional to 201,239.40, 302,204.70 and 142,487.40
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Solution
The fourth proportional to 201,239.40, 302,204.70 and 142,487.40 is: 213,975.80
Step by Step Solution
- Step 1: Write the proportion equation
201,239.40 : 302,204.70 = 142,487.40 : x - Step 2: Convert to fraction form
201,239.40/302,204.70 = 142,487.40/x - Step 3: Cross multiply
201,239.40x = 302,204.70 × 142,487.40 - Step 4: Simplify right side
201,239.40x = 43,060,361,970.78 - Step 5: Solve for x
x = 43,060,361,970.78/201,239.40 - Step 6: Final answer
x = 213,975.80
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1.5x scale
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.