Finding the Fourth Proportional to 439,063.76, 605,902.28 and 248,073.68
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Solution
The fourth proportional to 439,063.76, 605,902.28 and 248,073.68 is: 342,338.45
Step by Step Solution
- Step 1: Write the proportion equation
439,063.76 : 605,902.28 = 248,073.68 : x - Step 2: Convert to fraction form
439,063.76/605,902.28 = 248,073.68/x - Step 3: Cross multiply
439,063.76x = 605,902.28 × 248,073.68 - Step 4: Simplify right side
439,063.76x = 150,308,408,319.99 - Step 5: Solve for x
x = 150,308,408,319.99/439,063.76 - Step 6: Final answer
x = 342,338.45
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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.