Finding the Fourth Proportional to 155,318.99, 232,636.99 and 128,359.43
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Solution
The fourth proportional to 155,318.99, 232,636.99 and 128,359.43 is: 192,256.93
Step by Step Solution
- Step 1: Write the proportion equation
155,318.99 : 232,636.99 = 128,359.43 : x - Step 2: Convert to fraction form
155,318.99/232,636.99 = 128,359.43/x - Step 3: Cross multiply
155,318.99x = 232,636.99 × 128,359.43 - Step 4: Simplify right side
155,318.99x = 29,861,151,433.32 - Step 5: Solve for x
x = 29,861,151,433.32/155,318.99 - Step 6: Final answer
x = 192,256.93
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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.