Finding the Fourth Proportional to 485,098.84, 669,436.77 and 270,239.44
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Solution
The fourth proportional to 485,098.84, 669,436.77 and 270,239.44 is: 372,930.63
Step by Step Solution
- Step 1: Write the proportion equation
485,098.84 : 669,436.77 = 270,239.44 : x - Step 2: Convert to fraction form
485,098.84/669,436.77 = 270,239.44/x - Step 3: Cross multiply
485,098.84x = 669,436.77 × 270,239.44 - Step 4: Simplify right side
485,098.84x = 180,908,217,840.21 - Step 5: Solve for x
x = 180,908,217,840.21/485,098.84 - Step 6: Final answer
x = 372,930.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.