Finding the Fourth Proportional to 643,282.07, 964,553.94 and 243,667.97
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Solution
The fourth proportional to 643,282.07, 964,553.94 and 243,667.97 is: 365,362.12
Step by Step Solution
- Step 1: Write the proportion equation
643,282.07 : 964,553.94 = 243,667.97 : x - Step 2: Convert to fraction form
643,282.07/964,553.94 = 243,667.97/x - Step 3: Cross multiply
643,282.07x = 964,553.94 × 243,667.97 - Step 4: Simplify right side
643,282.07x = 235,030,900,515.30 - Step 5: Solve for x
x = 235,030,900,515.30/643,282.07 - Step 6: Final answer
x = 365,362.12
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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.