Finding the Fourth Proportional to 317,439.44, 438,071.88 and 174,212.81
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Solution
The fourth proportional to 317,439.44, 438,071.88 and 174,212.81 is: 240,416.66
Step by Step Solution
- Step 1: Write the proportion equation
317,439.44 : 438,071.88 = 174,212.81 : x - Step 2: Convert to fraction form
317,439.44/438,071.88 = 174,212.81/x - Step 3: Cross multiply
317,439.44x = 438,071.88 × 174,212.81 - Step 4: Simplify right side
317,439.44x = 76,317,730,135.36 - Step 5: Solve for x
x = 76,317,730,135.36/317,439.44 - Step 6: Final answer
x = 240,416.66
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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.