Finding the Fourth Proportional to 298,473.84, 447,411.60 and 138,662.08
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Solution
The fourth proportional to 298,473.84, 447,411.60 and 138,662.08 is: 207,854.14
Step by Step Solution
- Step 1: Write the proportion equation
298,473.84 : 447,411.60 = 138,662.08 : x - Step 2: Convert to fraction form
298,473.84/447,411.60 = 138,662.08/x - Step 3: Cross multiply
298,473.84x = 447,411.60 × 138,662.08 - Step 4: Simplify right side
298,473.84x = 62,039,023,072.13 - Step 5: Solve for x
x = 62,039,023,072.13/298,473.84 - Step 6: Final answer
x = 207,854.14
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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.