Finding the Fourth Proportional to 291,496.40, 436,207.80 and 202,331.60
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Solution
The fourth proportional to 291,496.40, 436,207.80 and 202,331.60 is: 302,777.74
Step by Step Solution
- Step 1: Write the proportion equation
291,496.40 : 436,207.80 = 202,331.60 : x - Step 2: Convert to fraction form
291,496.40/436,207.80 = 202,331.60/x - Step 3: Cross multiply
291,496.40x = 436,207.80 × 202,331.60 - Step 4: Simplify right side
291,496.40x = 88,258,622,106.48 - Step 5: Solve for x
x = 88,258,622,106.48/291,496.40 - Step 6: Final answer
x = 302,777.74
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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.