Finding the Fourth Proportional to 316,951.11, 475,326.19 and 103,669.70
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Solution
The fourth proportional to 316,951.11, 475,326.19 and 103,669.70 is: 155,471.69
Step by Step Solution
- Step 1: Write the proportion equation
316,951.11 : 475,326.19 = 103,669.70 : x - Step 2: Convert to fraction form
316,951.11/475,326.19 = 103,669.70/x - Step 3: Cross multiply
316,951.11x = 475,326.19 × 103,669.70 - Step 4: Simplify right side
316,951.11x = 49,276,923,001.09 - Step 5: Solve for x
x = 49,276,923,001.09/316,951.11 - Step 6: Final answer
x = 155,471.69
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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.