Finding the Fourth Proportional to 316,234.56, 474,358.74 and 126,784.14
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Solution
The fourth proportional to 316,234.56, 474,358.74 and 126,784.14 is: 190,178.98
Step by Step Solution
- Step 1: Write the proportion equation
316,234.56 : 474,358.74 = 126,784.14 : x - Step 2: Convert to fraction form
316,234.56/474,358.74 = 126,784.14/x - Step 3: Cross multiply
316,234.56x = 474,358.74 × 126,784.14 - Step 4: Simplify right side
316,234.56x = 60,141,164,902.38 - Step 5: Solve for x
x = 60,141,164,902.38/316,234.56 - Step 6: Final answer
x = 190,178.98
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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.