Finding the Fourth Proportional to 317,451.69, 438,090.53 and 174,220.88
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Solution
The fourth proportional to 317,451.69, 438,090.53 and 174,220.88 is: 240,428.75
Step by Step Solution
- Step 1: Write the proportion equation
317,451.69 : 438,090.53 = 174,220.88 : x - Step 2: Convert to fraction form
317,451.69/438,090.53 = 174,220.88/x - Step 3: Cross multiply
317,451.69x = 438,090.53 × 174,220.88 - Step 4: Simplify right side
317,451.69x = 76,324,514,594.71 - Step 5: Solve for x
x = 76,324,514,594.71/317,451.69 - Step 6: Final answer
x = 240,428.75
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1.5x scale
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.