Finding the Fourth Proportional to 421,834.68, 582,132.69 and 230,860.17
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Solution
The fourth proportional to 421,834.68, 582,132.69 and 230,860.17 is: 318,587.49
Step by Step Solution
- Step 1: Write the proportion equation
421,834.68 : 582,132.69 = 230,860.17 : x - Step 2: Convert to fraction form
421,834.68/582,132.69 = 230,860.17/x - Step 3: Cross multiply
421,834.68x = 582,132.69 × 230,860.17 - Step 4: Simplify right side
421,834.68x = 134,391,251,775.96 - Step 5: Solve for x
x = 134,391,251,775.96/421,834.68 - Step 6: Final answer
x = 318,587.49
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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.