Finding the Fourth Proportional to 286,810.74, 430,221.78 and 104,435.19
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Solution
The fourth proportional to 286,810.74, 430,221.78 and 104,435.19 is: 156,654.85
Step by Step Solution
- Step 1: Write the proportion equation
286,810.74 : 430,221.78 = 104,435.19 : x - Step 2: Convert to fraction form
286,810.74/430,221.78 = 104,435.19/x - Step 3: Cross multiply
286,810.74x = 430,221.78 × 104,435.19 - Step 4: Simplify right side
286,810.74x = 44,930,293,336.44 - Step 5: Solve for x
x = 44,930,293,336.44/286,810.74 - Step 6: Final answer
x = 156,654.85
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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.