Finding the Fourth Proportional to 238,509.99, 329,149.89 and 131,082.75
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Solution
The fourth proportional to 238,509.99, 329,149.89 and 131,082.75 is: 180,897.55
Step by Step Solution
- Step 1: Write the proportion equation
238,509.99 : 329,149.89 = 131,082.75 : x - Step 2: Convert to fraction form
238,509.99/329,149.89 = 131,082.75/x - Step 3: Cross multiply
238,509.99x = 329,149.89 × 131,082.75 - Step 4: Simplify right side
238,509.99x = 43,145,872,743.40 - Step 5: Solve for x
x = 43,145,872,743.40/238,509.99 - Step 6: Final answer
x = 180,897.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.