Finding the Fourth Proportional to 292,405.42, 438,623.79 and 92,740.96
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Solution
The fourth proportional to 292,405.42, 438,623.79 and 92,740.96 is: 139,116.41
Step by Step Solution
- Step 1: Write the proportion equation
292,405.42 : 438,623.79 = 92,740.96 : x - Step 2: Convert to fraction form
292,405.42/438,623.79 = 92,740.96/x - Step 3: Cross multiply
292,405.42x = 438,623.79 × 92,740.96 - Step 4: Simplify right side
292,405.42x = 40,678,391,363.44 - Step 5: Solve for x
x = 40,678,391,363.44/292,405.42 - Step 6: Final answer
x = 139,116.41
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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.