Finding the Fourth Proportional to 203,002.24, 280,138.91 and 112,352.80
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Solution
The fourth proportional to 203,002.24, 280,138.91 and 112,352.80 is: 155,044.55
Step by Step Solution
- Step 1: Write the proportion equation
203,002.24 : 280,138.91 = 112,352.80 : x - Step 2: Convert to fraction form
203,002.24/280,138.91 = 112,352.80/x - Step 3: Cross multiply
203,002.24x = 280,138.91 × 112,352.80 - Step 4: Simplify right side
203,002.24x = 31,474,391,886.44 - Step 5: Solve for x
x = 31,474,391,886.44/203,002.24 - Step 6: Final answer
x = 155,044.55
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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.