Finding the Fourth Proportional to 307,582.20, 461,438.10 and 129,997.80
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Solution
The fourth proportional to 307,582.20, 461,438.10 and 129,997.80 is: 195,024.09
Step by Step Solution
- Step 1: Write the proportion equation
307,582.20 : 461,438.10 = 129,997.80 : x - Step 2: Convert to fraction form
307,582.20/461,438.10 = 129,997.80/x - Step 3: Cross multiply
307,582.20x = 461,438.10 × 129,997.80 - Step 4: Simplify right side
307,582.20x = 59,985,937,836.18 - Step 5: Solve for x
x = 59,985,937,836.18/307,582.20 - Step 6: Final answer
x = 195,024.09
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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.