Finding the Fourth Proportional to 292,486.38, 438,729.69 and 105,497.88
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Solution
The fourth proportional to 292,486.38, 438,729.69 and 105,497.88 is: 158,246.86
Step by Step Solution
- Step 1: Write the proportion equation
292,486.38 : 438,729.69 = 105,497.88 : x - Step 2: Convert to fraction form
292,486.38/438,729.69 = 105,497.88/x - Step 3: Cross multiply
292,486.38x = 438,729.69 × 105,497.88 - Step 4: Simplify right side
292,486.38x = 46,285,052,188.06 - Step 5: Solve for x
x = 46,285,052,188.06/292,486.38 - Step 6: Final answer
x = 158,246.86
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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.