Finding the Fourth Proportional to 539,515.80, 809,740.20 and 207,325.08
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Solution
The fourth proportional to 539,515.80, 809,740.20 and 207,325.08 is: 311,166.89
Step by Step Solution
- Step 1: Write the proportion equation
539,515.80 : 809,740.20 = 207,325.08 : x - Step 2: Convert to fraction form
539,515.80/809,740.20 = 207,325.08/x - Step 3: Cross multiply
539,515.80x = 809,740.20 × 207,325.08 - Step 4: Simplify right side
539,515.80x = 167,879,451,744.22 - Step 5: Solve for x
x = 167,879,451,744.22/539,515.80 - Step 6: Final answer
x = 311,166.89
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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.