Finding the Fourth Proportional to 319,350.06, 479,025.16 and 129,913.49
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Solution
The fourth proportional to 319,350.06, 479,025.16 and 129,913.49 is: 194,870.26
Step by Step Solution
- Step 1: Write the proportion equation
319,350.06 : 479,025.16 = 129,913.49 : x - Step 2: Convert to fraction form
319,350.06/479,025.16 = 129,913.49/x - Step 3: Cross multiply
319,350.06x = 479,025.16 × 129,913.49 - Step 4: Simplify right side
319,350.06x = 62,231,830,333.41 - Step 5: Solve for x
x = 62,231,830,333.41/319,350.06 - Step 6: Final answer
x = 194,870.26
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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.