Finding the Fourth Proportional to 197,117.90, 295,336.65 and 91,720.70
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Solution
The fourth proportional to 197,117.90, 295,336.65 and 91,720.70 is: 137,422.75
Step by Step Solution
- Step 1: Write the proportion equation
197,117.90 : 295,336.65 = 91,720.70 : x - Step 2: Convert to fraction form
197,117.90/295,336.65 = 91,720.70/x - Step 3: Cross multiply
197,117.90x = 295,336.65 × 91,720.70 - Step 4: Simplify right side
197,117.90x = 27,088,484,273.66 - Step 5: Solve for x
x = 27,088,484,273.66/197,117.90 - Step 6: Final answer
x = 137,422.75
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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.