Finding the Fourth Proportional to 292,581.72, 438,887.70 and 92,917.80
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Solution
The fourth proportional to 292,581.72, 438,887.70 and 92,917.80 is: 139,381.50
Step by Step Solution
- Step 1: Write the proportion equation
292,581.72 : 438,887.70 = 92,917.80 : x - Step 2: Convert to fraction form
292,581.72/438,887.70 = 92,917.80/x - Step 3: Cross multiply
292,581.72x = 438,887.70 × 92,917.80 - Step 4: Simplify right side
292,581.72x = 40,780,479,531.06 - Step 5: Solve for x
x = 40,780,479,531.06/292,581.72 - Step 6: Final answer
x = 139,381.50
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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.