Finding the Fourth Proportional to 399,146.94, 598,291.92 and 199,072.08
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Solution
The fourth proportional to 399,146.94, 598,291.92 and 199,072.08 is: 298,394.41
Step by Step Solution
- Step 1: Write the proportion equation
399,146.94 : 598,291.92 = 199,072.08 : x - Step 2: Convert to fraction form
399,146.94/598,291.92 = 199,072.08/x - Step 3: Cross multiply
399,146.94x = 598,291.92 × 199,072.08 - Step 4: Simplify right side
399,146.94x = 119,103,216,961.59 - Step 5: Solve for x
x = 119,103,216,961.59/399,146.94 - Step 6: Final answer
x = 298,394.41
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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.