Finding the Fourth Proportional to 418,922.40, 628,354.80 and 134,608.80
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Solution
The fourth proportional to 418,922.40, 628,354.80 and 134,608.80 is: 201,903.95
Step by Step Solution
- Step 1: Write the proportion equation
418,922.40 : 628,354.80 = 134,608.80 : x - Step 2: Convert to fraction form
418,922.40/628,354.80 = 134,608.80/x - Step 3: Cross multiply
418,922.40x = 628,354.80 × 134,608.80 - Step 4: Simplify right side
418,922.40x = 84,582,085,602.24 - Step 5: Solve for x
x = 84,582,085,602.24/418,922.40 - Step 6: Final answer
x = 201,903.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.