Finding the Fourth Proportional to 315,481.95, 435,362.82 and 172,241.99
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Solution
The fourth proportional to 315,481.95, 435,362.82 and 172,241.99 is: 237,692.70
Step by Step Solution
- Step 1: Write the proportion equation
315,481.95 : 435,362.82 = 172,241.99 : x - Step 2: Convert to fraction form
315,481.95/435,362.82 = 172,241.99/x - Step 3: Cross multiply
315,481.95x = 435,362.82 × 172,241.99 - Step 4: Simplify right side
315,481.95x = 74,987,756,312.00 - Step 5: Solve for x
x = 74,987,756,312.00/315,481.95 - Step 6: Final answer
x = 237,692.70
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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.