Finding the Fourth Proportional to 429,393.93, 643,109.86 and 204,911.99
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Solution
The fourth proportional to 429,393.93, 643,109.86 and 204,911.99 is: 306,899.82
Step by Step Solution
- Step 1: Write the proportion equation
429,393.93 : 643,109.86 = 204,911.99 : x - Step 2: Convert to fraction form
429,393.93/643,109.86 = 204,911.99/x - Step 3: Cross multiply
429,393.93x = 643,109.86 × 204,911.99 - Step 4: Simplify right side
429,393.93x = 131,780,921,201.22 - Step 5: Solve for x
x = 131,780,921,201.22/429,393.93 - Step 6: Final answer
x = 306,899.82
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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.