Finding the Fourth Proportional to 317,639.36, 438,347.80 and 174,405.44
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Solution
The fourth proportional to 317,639.36, 438,347.80 and 174,405.44 is: 240,682.52
Step by Step Solution
- Step 1: Write the proportion equation
317,639.36 : 438,347.80 = 174,405.44 : x - Step 2: Convert to fraction form
317,639.36/438,347.80 = 174,405.44/x - Step 3: Cross multiply
317,639.36x = 438,347.80 × 174,405.44 - Step 4: Simplify right side
317,639.36x = 76,450,240,932.03 - Step 5: Solve for x
x = 76,450,240,932.03/317,639.36 - Step 6: Final answer
x = 240,682.52
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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.