Finding the Fourth Proportional to 319,638.16, 479,332.58 and 119,849.68
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Solution
The fourth proportional to 319,638.16, 479,332.58 and 119,849.68 is: 179,727.78
Step by Step Solution
- Step 1: Write the proportion equation
319,638.16 : 479,332.58 = 119,849.68 : x - Step 2: Convert to fraction form
319,638.16/479,332.58 = 119,849.68/x - Step 3: Cross multiply
319,638.16x = 479,332.58 × 119,849.68 - Step 4: Simplify right side
319,638.16x = 57,447,856,326.57 - Step 5: Solve for x
x = 57,447,856,326.57/319,638.16 - Step 6: Final answer
x = 179,727.78
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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.