Finding the Fourth Proportional to 312,155.24, 430,668.80 and 203,209.84
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Solution
The fourth proportional to 312,155.24, 430,668.80 and 203,209.84 is: 280,360.93
Step by Step Solution
- Step 1: Write the proportion equation
312,155.24 : 430,668.80 = 203,209.84 : x - Step 2: Convert to fraction form
312,155.24/430,668.80 = 203,209.84/x - Step 3: Cross multiply
312,155.24x = 430,668.80 × 203,209.84 - Step 4: Simplify right side
312,155.24x = 87,516,134,771.60 - Step 5: Solve for x
x = 87,516,134,771.60/312,155.24 - Step 6: Final answer
x = 280,360.93
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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.