Finding the Fourth Proportional to 178,499.99, 267,820.09 and 78,590.09
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Solution
The fourth proportional to 178,499.99, 267,820.09 and 78,590.09 is: 117,916.00
Step by Step Solution
- Step 1: Write the proportion equation
178,499.99 : 267,820.09 = 78,590.09 : x - Step 2: Convert to fraction form
178,499.99/267,820.09 = 78,590.09/x - Step 3: Cross multiply
178,499.99x = 267,820.09 × 78,590.09 - Step 4: Simplify right side
178,499.99x = 21,048,005,449.98 - Step 5: Solve for x
x = 21,048,005,449.98/178,499.99 - Step 6: Final answer
x = 117,916.00
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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.