Finding the Fourth Proportional to 605,423.80, 908,135.70 and 251,129.80
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Solution
The fourth proportional to 605,423.80, 908,135.70 and 251,129.80 is: 376,694.70
Step by Step Solution
- Step 1: Write the proportion equation
605,423.80 : 908,135.70 = 251,129.80 : x - Step 2: Convert to fraction form
605,423.80/908,135.70 = 251,129.80/x - Step 3: Cross multiply
605,423.80x = 908,135.70 × 251,129.80 - Step 4: Simplify right side
605,423.80x = 228,059,936,713.86 - Step 5: Solve for x
x = 228,059,936,713.86/605,423.80 - Step 6: Final answer
x = 376,694.70
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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.