Finding the Fourth Proportional to 259,442.88, 389,132.12 and 69,918.08
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Solution
The fourth proportional to 259,442.88, 389,132.12 and 69,918.08 is: 104,868.43
Step by Step Solution
- Step 1: Write the proportion equation
259,442.88 : 389,132.12 = 69,918.08 : x - Step 2: Convert to fraction form
259,442.88/389,132.12 = 69,918.08/x - Step 3: Cross multiply
259,442.88x = 389,132.12 × 69,918.08 - Step 4: Simplify right side
259,442.88x = 27,207,368,401.48 - Step 5: Solve for x
x = 27,207,368,401.48/259,442.88 - Step 6: Final answer
x = 104,868.43
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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.