Finding the Fourth Proportional to 316,890.63, 475,016.09 and 198,645.00
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Solution
The fourth proportional to 316,890.63, 475,016.09 and 198,645.00 is: 297,766.99
Step by Step Solution
- Step 1: Write the proportion equation
316,890.63 : 475,016.09 = 198,645.00 : x - Step 2: Convert to fraction form
316,890.63/475,016.09 = 198,645.00/x - Step 3: Cross multiply
316,890.63x = 475,016.09 × 198,645.00 - Step 4: Simplify right side
316,890.63x = 94,359,567,829.74 - Step 5: Solve for x
x = 94,359,567,829.74/316,890.63 - Step 6: Final answer
x = 297,766.99
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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.