Finding the Fourth Proportional to 312,246.90, 430,785.45 and 204,876.54
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Solution
The fourth proportional to 312,246.90, 430,785.45 and 204,876.54 is: 282,653.99
Step by Step Solution
- Step 1: Write the proportion equation
312,246.90 : 430,785.45 = 204,876.54 : x - Step 2: Convert to fraction form
312,246.90/430,785.45 = 204,876.54/x - Step 3: Cross multiply
312,246.90x = 430,785.45 × 204,876.54 - Step 4: Simplify right side
312,246.90x = 88,257,832,478.34 - Step 5: Solve for x
x = 88,257,832,478.34/312,246.90 - Step 6: Final answer
x = 282,653.99
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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.