Finding the Fourth Proportional to 403,617.78, 605,130.21 and 193,403.34
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Solution
The fourth proportional to 403,617.78, 605,130.21 and 193,403.34 is: 289,962.96
Step by Step Solution
- Step 1: Write the proportion equation
403,617.78 : 605,130.21 = 193,403.34 : x - Step 2: Convert to fraction form
403,617.78/605,130.21 = 193,403.34/x - Step 3: Cross multiply
403,617.78x = 605,130.21 × 193,403.34 - Step 4: Simplify right side
403,617.78x = 117,034,205,745.24 - Step 5: Solve for x
x = 117,034,205,745.24/403,617.78 - Step 6: Final answer
x = 289,962.96
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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.