Finding the Fourth Proportional to 203,519.86, 280,874.60 and 112,904.99
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Solution
The fourth proportional to 203,519.86, 280,874.60 and 112,904.99 is: 155,818.43
Step by Step Solution
- Step 1: Write the proportion equation
203,519.86 : 280,874.60 = 112,904.99 : x - Step 2: Convert to fraction form
203,519.86/280,874.60 = 112,904.99/x - Step 3: Cross multiply
203,519.86x = 280,874.60 × 112,904.99 - Step 4: Simplify right side
203,519.86x = 31,712,144,047.12 - Step 5: Solve for x
x = 31,712,144,047.12/203,519.86 - Step 6: Final answer
x = 155,818.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.