Finding the Fourth Proportional to 292,121.96, 438,139.08 and 92,416.40
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Solution
The fourth proportional to 292,121.96, 438,139.08 and 92,416.40 is: 138,610.72
Step by Step Solution
- Step 1: Write the proportion equation
292,121.96 : 438,139.08 = 92,416.40 : x - Step 2: Convert to fraction form
292,121.96/438,139.08 = 92,416.40/x - Step 3: Cross multiply
292,121.96x = 438,139.08 × 92,416.40 - Step 4: Simplify right side
292,121.96x = 40,491,234,282.22 - Step 5: Solve for x
x = 40,491,234,282.22/292,121.96 - Step 6: Final answer
x = 138,610.72
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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.