Finding the Fourth Proportional to 313,318.62, 432,387.53 and 170,078.65
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Solution
The fourth proportional to 313,318.62, 432,387.53 and 170,078.65 is: 234,712.79
Step by Step Solution
- Step 1: Write the proportion equation
313,318.62 : 432,387.53 = 170,078.65 : x - Step 2: Convert to fraction form
313,318.62/432,387.53 = 170,078.65/x - Step 3: Cross multiply
313,318.62x = 432,387.53 × 170,078.65 - Step 4: Simplify right side
313,318.62x = 73,539,887,379.23 - Step 5: Solve for x
x = 73,539,887,379.23/313,318.62 - Step 6: Final answer
x = 234,712.79
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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.