Finding the Fourth Proportional to 259,579.75, 358,220.06 and 140,347.75
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Solution
The fourth proportional to 259,579.75, 358,220.06 and 140,347.75 is: 193,679.90
Step by Step Solution
- Step 1: Write the proportion equation
259,579.75 : 358,220.06 = 140,347.75 : x - Step 2: Convert to fraction form
259,579.75/358,220.06 = 140,347.75/x - Step 3: Cross multiply
259,579.75x = 358,220.06 × 140,347.75 - Step 4: Simplify right side
259,579.75x = 50,275,379,425.87 - Step 5: Solve for x
x = 50,275,379,425.87/259,579.75 - Step 6: Final answer
x = 193,679.90
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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.