Finding the Fourth Proportional to 527,260.80, 790,891.20 and 211,555.20
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Solution
The fourth proportional to 527,260.80, 790,891.20 and 211,555.20 is: 317,332.80
Step by Step Solution
- Step 1: Write the proportion equation
527,260.80 : 790,891.20 = 211,555.20 : x - Step 2: Convert to fraction form
527,260.80/790,891.20 = 211,555.20/x - Step 3: Cross multiply
527,260.80x = 790,891.20 × 211,555.20 - Step 4: Simplify right side
527,260.80x = 167,317,145,994.24 - Step 5: Solve for x
x = 167,317,145,994.24/527,260.80 - Step 6: Final answer
x = 317,332.80
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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.