Finding the Fourth Proportional to 317,473.20, 438,099.30 and 174,235.68
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Solution
The fourth proportional to 317,473.20, 438,099.30 and 174,235.68 is: 240,437.71
Step by Step Solution
- Step 1: Write the proportion equation
317,473.20 : 438,099.30 = 174,235.68 : x - Step 2: Convert to fraction form
317,473.20/438,099.30 = 174,235.68/x - Step 3: Cross multiply
317,473.20x = 438,099.30 × 174,235.68 - Step 4: Simplify right side
317,473.20x = 76,332,529,443.02 - Step 5: Solve for x
x = 76,332,529,443.02/317,473.20 - Step 6: Final answer
x = 240,437.71
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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.