Finding the Fourth Proportional to 178,778.28, 246,679.11 and 102,320.76
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Solution
The fourth proportional to 178,778.28, 246,679.11 and 102,320.76 is: 141,182.66
Step by Step Solution
- Step 1: Write the proportion equation
178,778.28 : 246,679.11 = 102,320.76 : x - Step 2: Convert to fraction form
178,778.28/246,679.11 = 102,320.76/x - Step 3: Cross multiply
178,778.28x = 246,679.11 × 102,320.76 - Step 4: Simplify right side
178,778.28x = 25,240,394,011.32 - Step 5: Solve for x
x = 25,240,394,011.32/178,778.28 - Step 6: Final answer
x = 141,182.66
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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.