Finding the Fourth Proportional to 331,130.36, 456,960.79 and 187,890.03
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Solution
The fourth proportional to 331,130.36, 456,960.79 and 187,890.03 is: 259,288.75
Step by Step Solution
- Step 1: Write the proportion equation
331,130.36 : 456,960.79 = 187,890.03 : x - Step 2: Convert to fraction form
331,130.36/456,960.79 = 187,890.03/x - Step 3: Cross multiply
331,130.36x = 456,960.79 × 187,890.03 - Step 4: Simplify right side
331,130.36x = 85,858,376,776.79 - Step 5: Solve for x
x = 85,858,376,776.79/331,130.36 - Step 6: Final answer
x = 259,288.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.