Finding the Fourth Proportional to 508,906.80, 763,129.80 and 193,258.80
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Solution
The fourth proportional to 508,906.80, 763,129.80 and 193,258.80 is: 289,800.70
Step by Step Solution
- Step 1: Write the proportion equation
508,906.80 : 763,129.80 = 193,258.80 : x - Step 2: Convert to fraction form
508,906.80/763,129.80 = 193,258.80/x - Step 3: Cross multiply
508,906.80x = 763,129.80 × 193,258.80 - Step 4: Simplify right side
508,906.80x = 147,481,549,392.24 - Step 5: Solve for x
x = 147,481,549,392.24/508,906.80 - Step 6: Final answer
x = 289,800.70
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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.