Finding the Fourth Proportional to 260,069.20, 389,447.70 and 207,581.20
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Solution
The fourth proportional to 260,069.20, 389,447.70 and 207,581.20 is: 310,848.12
Step by Step Solution
- Step 1: Write the proportion equation
260,069.20 : 389,447.70 = 207,581.20 : x - Step 2: Convert to fraction form
260,069.20/389,447.70 = 207,581.20/x - Step 3: Cross multiply
260,069.20x = 389,447.70 × 207,581.20 - Step 4: Simplify right side
260,069.20x = 80,842,020,903.24 - Step 5: Solve for x
x = 80,842,020,903.24/260,069.20 - Step 6: Final answer
x = 310,848.12
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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.