Finding the Fourth Proportional to 319,349.06, 479,023.66 and 129,912.49
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Solution
The fourth proportional to 319,349.06, 479,023.66 and 129,912.49 is: 194,868.76
Step by Step Solution
- Step 1: Write the proportion equation
319,349.06 : 479,023.66 = 129,912.49 : x - Step 2: Convert to fraction form
319,349.06/479,023.66 = 129,912.49/x - Step 3: Cross multiply
319,349.06x = 479,023.66 × 129,912.49 - Step 4: Simplify right side
319,349.06x = 62,231,154,044.40 - Step 5: Solve for x
x = 62,231,154,044.40/319,349.06 - Step 6: Final answer
x = 194,868.76
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1.5x scale
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.