Finding the Fourth Proportional to 345,447.38, 518,171.09 and 134,937.70
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Solution
The fourth proportional to 345,447.38, 518,171.09 and 134,937.70 is: 202,406.55
Step by Step Solution
- Step 1: Write the proportion equation
345,447.38 : 518,171.09 = 134,937.70 : x - Step 2: Convert to fraction form
345,447.38/518,171.09 = 134,937.70/x - Step 3: Cross multiply
345,447.38x = 518,171.09 × 134,937.70 - Step 4: Simplify right side
345,447.38x = 69,920,813,120.98 - Step 5: Solve for x
x = 69,920,813,120.98/345,447.38 - Step 6: Final answer
x = 202,406.55
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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.