Finding the Fourth Proportional to 260,070.20, 389,449.20 and 207,582.20
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Solution
The fourth proportional to 260,070.20, 389,449.20 and 207,582.20 is: 310,849.62
Step by Step Solution
- Step 1: Write the proportion equation
260,070.20 : 389,449.20 = 207,582.20 : x - Step 2: Convert to fraction form
260,070.20/389,449.20 = 207,582.20/x - Step 3: Cross multiply
260,070.20x = 389,449.20 × 207,582.20 - Step 4: Simplify right side
260,070.20x = 80,842,721,724.24 - Step 5: Solve for x
x = 80,842,721,724.24/260,070.20 - Step 6: Final answer
x = 310,849.62
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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.