Finding the Fourth Proportional to 287,641.05, 431,523.86 and 110,148.07
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Solution
The fourth proportional to 287,641.05, 431,523.86 and 110,148.07 is: 165,245.95
Step by Step Solution
- Step 1: Write the proportion equation
287,641.05 : 431,523.86 = 110,148.07 : x - Step 2: Convert to fraction form
287,641.05/431,523.86 = 110,148.07/x - Step 3: Cross multiply
287,641.05x = 431,523.86 × 110,148.07 - Step 4: Simplify right side
287,641.05x = 47,531,518,708.40 - Step 5: Solve for x
x = 47,531,518,708.40/287,641.05 - Step 6: Final answer
x = 165,245.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.