Finding the Fourth Proportional to 178,858.99, 268,088.68 and 77,540.07
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Solution
The fourth proportional to 178,858.99, 268,088.68 and 77,540.07 is: 116,223.48
Step by Step Solution
- Step 1: Write the proportion equation
178,858.99 : 268,088.68 = 77,540.07 : x - Step 2: Convert to fraction form
178,858.99/268,088.68 = 77,540.07/x - Step 3: Cross multiply
178,858.99x = 268,088.68 × 77,540.07 - Step 4: Simplify right side
178,858.99x = 20,787,614,149.34 - Step 5: Solve for x
x = 20,787,614,149.34/178,858.99 - Step 6: Final answer
x = 116,223.48
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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.