Finding the Fourth Proportional to 212,320.23, 292,968.46 and 121,658.75
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Solution
The fourth proportional to 212,320.23, 292,968.46 and 121,658.75 is: 167,869.90
Step by Step Solution
- Step 1: Write the proportion equation
212,320.23 : 292,968.46 = 121,658.75 : x - Step 2: Convert to fraction form
212,320.23/292,968.46 = 121,658.75/x - Step 3: Cross multiply
212,320.23x = 292,968.46 × 121,658.75 - Step 4: Simplify right side
212,320.23x = 35,642,176,633.03 - Step 5: Solve for x
x = 35,642,176,633.03/212,320.23 - Step 6: Final answer
x = 167,869.90
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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.