Finding the Fourth Proportional to 317,434.71, 438,058.60 and 174,197.14
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Solution
The fourth proportional to 317,434.71, 438,058.60 and 174,197.14 is: 240,391.34
Step by Step Solution
- Step 1: Write the proportion equation
317,434.71 : 438,058.60 = 174,197.14 : x - Step 2: Convert to fraction form
317,434.71/438,058.60 = 174,197.14/x - Step 3: Cross multiply
317,434.71x = 438,058.60 × 174,197.14 - Step 4: Simplify right side
317,434.71x = 76,308,555,272.40 - Step 5: Solve for x
x = 76,308,555,272.40/317,434.71 - Step 6: Final answer
x = 240,391.34
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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.