Finding the Fourth Proportional to 418,775.40, 628,163.10 and 250,813.80
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Solution
The fourth proportional to 418,775.40, 628,163.10 and 250,813.80 is: 376,220.70
Step by Step Solution
- Step 1: Write the proportion equation
418,775.40 : 628,163.10 = 250,813.80 : x - Step 2: Convert to fraction form
418,775.40/628,163.10 = 250,813.80/x - Step 3: Cross multiply
418,775.40x = 628,163.10 × 250,813.80 - Step 4: Simplify right side
418,775.40x = 157,551,974,130.78 - Step 5: Solve for x
x = 157,551,974,130.78/418,775.40 - Step 6: Final answer
x = 376,220.70
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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.