Finding the Fourth Proportional to 259,220.75, 357,724.64 and 139,988.75
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Solution
The fourth proportional to 259,220.75, 357,724.64 and 139,988.75 is: 193,184.48
Step by Step Solution
- Step 1: Write the proportion equation
259,220.75 : 357,724.64 = 139,988.75 : x - Step 2: Convert to fraction form
259,220.75/357,724.64 = 139,988.75/x - Step 3: Cross multiply
259,220.75x = 357,724.64 × 139,988.75 - Step 4: Simplify right side
259,220.75x = 50,077,425,197.80 - Step 5: Solve for x
x = 50,077,425,197.80/259,220.75 - Step 6: Final answer
x = 193,184.48
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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.