Finding the Fourth Proportional to 207,962.80, 312,052.20 and 97,154.80
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Solution
The fourth proportional to 207,962.80, 312,052.20 and 97,154.80 is: 145,782.65
Step by Step Solution
- Step 1: Write the proportion equation
207,962.80 : 312,052.20 = 97,154.80 : x - Step 2: Convert to fraction form
207,962.80/312,052.20 = 97,154.80/x - Step 3: Cross multiply
207,962.80x = 312,052.20 × 97,154.80 - Step 4: Simplify right side
207,962.80x = 30,317,369,080.56 - Step 5: Solve for x
x = 30,317,369,080.56/207,962.80 - Step 6: Final answer
x = 145,782.65
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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.