Finding the Fourth Proportional to 286,426.26, 395,257.19 and 159,109.92
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Solution
The fourth proportional to 286,426.26, 395,257.19 and 159,109.92 is: 219,565.55
Step by Step Solution
- Step 1: Write the proportion equation
286,426.26 : 395,257.19 = 159,109.92 : x - Step 2: Convert to fraction form
286,426.26/395,257.19 = 159,109.92/x - Step 3: Cross multiply
286,426.26x = 395,257.19 × 159,109.92 - Step 4: Simplify right side
286,426.26x = 62,889,339,084.78 - Step 5: Solve for x
x = 62,889,339,084.78/286,426.26 - Step 6: Final answer
x = 219,565.55
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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.