Finding the Fourth Proportional to 286,421.76, 395,250.98 and 159,105.42
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Solution
The fourth proportional to 286,421.76, 395,250.98 and 159,105.42 is: 219,559.34
Step by Step Solution
- Step 1: Write the proportion equation
286,421.76 : 395,250.98 = 159,105.42 : x - Step 2: Convert to fraction form
286,421.76/395,250.98 = 159,105.42/x - Step 3: Cross multiply
286,421.76x = 395,250.98 × 159,105.42 - Step 4: Simplify right side
286,421.76x = 62,886,572,382.78 - Step 5: Solve for x
x = 62,886,572,382.78/286,421.76 - Step 6: Final answer
x = 219,559.34
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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.