Finding the Fourth Proportional to 397,132.65, 548,122.76 and 235,956.67
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Solution
The fourth proportional to 397,132.65, 548,122.76 and 235,956.67 is: 325,667.56
Step by Step Solution
- Step 1: Write the proportion equation
397,132.65 : 548,122.76 = 235,956.67 : x - Step 2: Convert to fraction form
397,132.65/548,122.76 = 235,956.67/x - Step 3: Cross multiply
397,132.65x = 548,122.76 × 235,956.67 - Step 4: Simplify right side
397,132.65x = 129,333,221,200.81 - Step 5: Solve for x
x = 129,333,221,200.81/397,132.65 - Step 6: Final answer
x = 325,667.56
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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.