Finding the Fourth Proportional to 373,690.07, 515,709.09 and 210,402.80
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Solution
The fourth proportional to 373,690.07, 515,709.09 and 210,402.80 is: 290,365.32
Step by Step Solution
- Step 1: Write the proportion equation
373,690.07 : 515,709.09 = 210,402.80 : x - Step 2: Convert to fraction form
373,690.07/515,709.09 = 210,402.80/x - Step 3: Cross multiply
373,690.07x = 515,709.09 × 210,402.80 - Step 4: Simplify right side
373,690.07x = 108,506,633,942.91 - Step 5: Solve for x
x = 108,506,633,942.91/373,690.07 - Step 6: Final answer
x = 290,365.32
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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.