Finding the Fourth Proportional to 178,459.70, 246,274.37 and 103,008.20
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Solution
The fourth proportional to 178,459.70, 246,274.37 and 103,008.20 is: 142,151.30
Step by Step Solution
- Step 1: Write the proportion equation
178,459.70 : 246,274.37 = 103,008.20 : x - Step 2: Convert to fraction form
178,459.70/246,274.37 = 103,008.20/x - Step 3: Cross multiply
178,459.70x = 246,274.37 × 103,008.20 - Step 4: Simplify right side
178,459.70x = 25,368,277,813.42 - Step 5: Solve for x
x = 25,368,277,813.42/178,459.70 - Step 6: Final answer
x = 142,151.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.