Finding the Fourth Proportional to 295,989.80, 443,984.70 and 129,777.80
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Solution
The fourth proportional to 295,989.80, 443,984.70 and 129,777.80 is: 194,666.70
Step by Step Solution
- Step 1: Write the proportion equation
295,989.80 : 443,984.70 = 129,777.80 : x - Step 2: Convert to fraction form
295,989.80/443,984.70 = 129,777.80/x - Step 3: Cross multiply
295,989.80x = 443,984.70 × 129,777.80 - Step 4: Simplify right side
295,989.80x = 57,619,357,599.66 - Step 5: Solve for x
x = 57,619,357,599.66/295,989.80 - Step 6: Final answer
x = 194,666.70
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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.