Finding the Fourth Proportional to 260,879.80, 391,319.70 and 63,887.80
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Solution
The fourth proportional to 260,879.80, 391,319.70 and 63,887.80 is: 95,831.70
Step by Step Solution
- Step 1: Write the proportion equation
260,879.80 : 391,319.70 = 63,887.80 : x - Step 2: Convert to fraction form
260,879.80/391,319.70 = 63,887.80/x - Step 3: Cross multiply
260,879.80x = 391,319.70 × 63,887.80 - Step 4: Simplify right side
260,879.80x = 25,000,554,729.66 - Step 5: Solve for x
x = 25,000,554,729.66/260,879.80 - Step 6: Final answer
x = 95,831.70
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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.