Finding the Fourth Proportional to 261,863.99, 361,345.49 and 147,124.38
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Solution
The fourth proportional to 261,863.99, 361,345.49 and 147,124.38 is: 203,016.58
Step by Step Solution
- Step 1: Write the proportion equation
261,863.99 : 361,345.49 = 147,124.38 : x - Step 2: Convert to fraction form
261,863.99/361,345.49 = 147,124.38/x - Step 3: Cross multiply
261,863.99x = 361,345.49 × 147,124.38 - Step 4: Simplify right side
261,863.99x = 53,162,732,353.19 - Step 5: Solve for x
x = 53,162,732,353.19/261,863.99 - Step 6: Final answer
x = 203,016.58
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1.5x scale
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.