Finding the Fourth Proportional to 317,297.12, 438,040.58 and 245,074.14
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Solution
The fourth proportional to 317,297.12, 438,040.58 and 245,074.14 is: 338,334.05
Step by Step Solution
- Step 1: Write the proportion equation
317,297.12 : 438,040.58 = 245,074.14 : x - Step 2: Convert to fraction form
317,297.12/438,040.58 = 245,074.14/x - Step 3: Cross multiply
317,297.12x = 438,040.58 × 245,074.14 - Step 4: Simplify right side
317,297.12x = 107,352,417,203.23 - Step 5: Solve for x
x = 107,352,417,203.23/317,297.12 - Step 6: Final answer
x = 338,334.05
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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.