Finding the Fourth Proportional to 155,318.30, 232,635.96 and 128,358.75
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Solution
The fourth proportional to 155,318.30, 232,635.96 and 128,358.75 is: 192,255.91
Step by Step Solution
- Step 1: Write the proportion equation
155,318.30 : 232,635.96 = 128,358.75 : x - Step 2: Convert to fraction form
155,318.30/232,635.96 = 128,358.75/x - Step 3: Cross multiply
155,318.30x = 232,635.96 × 128,358.75 - Step 4: Simplify right side
155,318.30x = 29,860,861,030.65 - Step 5: Solve for x
x = 29,860,861,030.65/155,318.30 - Step 6: Final answer
x = 192,255.91
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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.