Finding the Fourth Proportional to 317,415.31, 438,038.48 and 174,188.68
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Solution
The fourth proportional to 317,415.31, 438,038.48 and 174,188.68 is: 240,383.32
Step by Step Solution
- Step 1: Write the proportion equation
317,415.31 : 438,038.48 = 174,188.68 : x - Step 2: Convert to fraction form
317,415.31/438,038.48 = 174,188.68/x - Step 3: Cross multiply
317,415.31x = 438,038.48 × 174,188.68 - Step 4: Simplify right side
317,415.31x = 76,301,343,960.78 - Step 5: Solve for x
x = 76,301,343,960.78/317,415.31 - Step 6: Final answer
x = 240,383.32
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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.