Finding the Fourth Proportional to 260,108.70, 389,506.95 and 207,620.70
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Solution
The fourth proportional to 260,108.70, 389,506.95 and 207,620.70 is: 310,907.35
Step by Step Solution
- Step 1: Write the proportion equation
260,108.70 : 389,506.95 = 207,620.70 : x - Step 2: Convert to fraction form
260,108.70/389,506.95 = 207,620.70/x - Step 3: Cross multiply
260,108.70x = 389,506.95 × 207,620.70 - Step 4: Simplify right side
260,108.70x = 80,869,705,613.87 - Step 5: Solve for x
x = 80,869,705,613.87/260,108.70 - Step 6: Final answer
x = 310,907.35
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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.