Finding the Fourth Proportional to 397,720.08, 548,865.54 and 216,444.96
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Solution
The fourth proportional to 397,720.08, 548,865.54 and 216,444.96 is: 298,700.48
Step by Step Solution
- Step 1: Write the proportion equation
397,720.08 : 548,865.54 = 216,444.96 : x - Step 2: Convert to fraction form
397,720.08/548,865.54 = 216,444.96/x - Step 3: Cross multiply
397,720.08x = 548,865.54 × 216,444.96 - Step 4: Simplify right side
397,720.08x = 118,799,179,850.68 - Step 5: Solve for x
x = 118,799,179,850.68/397,720.08 - Step 6: Final answer
x = 298,700.48
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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.