Finding the Fourth Proportional to 313,930.91, 433,212.72 and 170,691.08
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Solution
The fourth proportional to 313,930.91, 433,212.72 and 170,691.08 is: 235,547.19
Step by Step Solution
- Step 1: Write the proportion equation
313,930.91 : 433,212.72 = 170,691.08 : x - Step 2: Convert to fraction form
313,930.91/433,212.72 = 170,691.08/x - Step 3: Cross multiply
313,930.91x = 433,212.72 × 170,691.08 - Step 4: Simplify right side
313,930.91x = 73,945,544,027.02 - Step 5: Solve for x
x = 73,945,544,027.02/313,930.91 - Step 6: Final answer
x = 235,547.19
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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.