Finding the Fourth Proportional to 212,266.81, 292,762.37 and 131,649.13
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Solution
The fourth proportional to 212,266.81, 292,762.37 and 131,649.13 is: 181,572.95
Step by Step Solution
- Step 1: Write the proportion equation
212,266.81 : 292,762.37 = 131,649.13 : x - Step 2: Convert to fraction form
212,266.81/292,762.37 = 131,649.13/x - Step 3: Cross multiply
212,266.81x = 292,762.37 × 131,649.13 - Step 4: Simplify right side
212,266.81x = 38,541,910,648.99 - Step 5: Solve for x
x = 38,541,910,648.99/212,266.81 - Step 6: Final answer
x = 181,572.95
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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.