Finding the Fourth Proportional to 439,108.39, 605,961.70 and 248,117.68
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Solution
The fourth proportional to 439,108.39, 605,961.70 and 248,117.68 is: 342,397.95
Step by Step Solution
- Step 1: Write the proportion equation
439,108.39 : 605,961.70 = 248,117.68 : x - Step 2: Convert to fraction form
439,108.39/605,961.70 = 248,117.68/x - Step 3: Cross multiply
439,108.39x = 605,961.70 × 248,117.68 - Step 4: Simplify right side
439,108.39x = 150,349,811,172.86 - Step 5: Solve for x
x = 150,349,811,172.86/439,108.39 - Step 6: Final answer
x = 342,397.95
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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.