Finding the Fourth Proportional to 309,625.80, 464,438.70 and 270,259.80
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Solution
The fourth proportional to 309,625.80, 464,438.70 and 270,259.80 is: 405,389.70
Step by Step Solution
- Step 1: Write the proportion equation
309,625.80 : 464,438.70 = 270,259.80 : x - Step 2: Convert to fraction form
309,625.80/464,438.70 = 270,259.80/x - Step 3: Cross multiply
309,625.80x = 464,438.70 × 270,259.80 - Step 4: Simplify right side
309,625.80x = 125,519,110,174.26 - Step 5: Solve for x
x = 125,519,110,174.26/309,625.80 - Step 6: Final answer
x = 405,389.70
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1.5x scale
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.