Finding the Fourth Proportional to 307,578.48, 424,458.36 and 173,442.48
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Solution
The fourth proportional to 307,578.48, 424,458.36 and 173,442.48 is: 239,350.65
Step by Step Solution
- Step 1: Write the proportion equation
307,578.48 : 424,458.36 = 173,442.48 : x - Step 2: Convert to fraction form
307,578.48/424,458.36 = 173,442.48/x - Step 3: Cross multiply
307,578.48x = 424,458.36 × 173,442.48 - Step 4: Simplify right side
307,578.48x = 73,619,110,615.13 - Step 5: Solve for x
x = 73,619,110,615.13/307,578.48 - Step 6: Final answer
x = 239,350.65
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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.