Finding the Fourth Proportional to 429,394.93, 643,111.36 and 204,912.99
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Solution
The fourth proportional to 429,394.93, 643,111.36 and 204,912.99 is: 306,901.32
Step by Step Solution
- Step 1: Write the proportion equation
429,394.93 : 643,111.36 = 204,912.99 : x - Step 2: Convert to fraction form
429,394.93/643,111.36 = 204,912.99/x - Step 3: Cross multiply
429,394.93x = 643,111.36 × 204,912.99 - Step 4: Simplify right side
429,394.93x = 131,781,871,680.57 - Step 5: Solve for x
x = 131,781,871,680.57/429,394.93 - Step 6: Final answer
x = 306,901.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.