Finding the Fourth Proportional to 213,130.26, 319,285.08 and 133,199.46
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Solution
The fourth proportional to 213,130.26, 319,285.08 and 133,199.46 is: 199,542.76
Step by Step Solution
- Step 1: Write the proportion equation
213,130.26 : 319,285.08 = 133,199.46 : x - Step 2: Convert to fraction form
213,130.26/319,285.08 = 133,199.46/x - Step 3: Cross multiply
213,130.26x = 319,285.08 × 133,199.46 - Step 4: Simplify right side
213,130.26x = 42,528,600,242.06 - Step 5: Solve for x
x = 42,528,600,242.06/213,130.26 - Step 6: Final answer
x = 199,542.76
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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.