Finding the Fourth Proportional to 153,636.86, 230,489.12 and 47,021.63
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Solution
The fourth proportional to 153,636.86, 230,489.12 and 47,021.63 is: 70,542.79
Step by Step Solution
- Step 1: Write the proportion equation
153,636.86 : 230,489.12 = 47,021.63 : x - Step 2: Convert to fraction form
153,636.86/230,489.12 = 47,021.63/x - Step 3: Cross multiply
153,636.86x = 230,489.12 × 47,021.63 - Step 4: Simplify right side
153,636.86x = 10,837,972,732.11 - Step 5: Solve for x
x = 10,837,972,732.11/153,636.86 - Step 6: Final answer
x = 70,542.79
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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.