Finding the Fourth Proportional to 213,455.07, 320,237.91 and 113,533.02
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Solution
The fourth proportional to 213,455.07, 320,237.91 and 113,533.02 is: 170,328.95
Step by Step Solution
- Step 1: Write the proportion equation
213,455.07 : 320,237.91 = 113,533.02 : x - Step 2: Convert to fraction form
213,455.07/320,237.91 = 113,533.02/x - Step 3: Cross multiply
213,455.07x = 320,237.91 × 113,533.02 - Step 4: Simplify right side
213,455.07x = 36,357,577,040.79 - Step 5: Solve for x
x = 36,357,577,040.79/213,455.07 - Step 6: Final answer
x = 170,328.95
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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.