Finding the Fourth Proportional to 309,645.44, 427,344.84 and 173,692.64
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Solution
The fourth proportional to 309,645.44, 427,344.84 and 173,692.64 is: 239,714.99
Step by Step Solution
- Step 1: Write the proportion equation
309,645.44 : 427,344.84 = 173,692.64 : x - Step 2: Convert to fraction form
309,645.44/427,344.84 = 173,692.64/x - Step 3: Cross multiply
309,645.44x = 427,344.84 × 173,692.64 - Step 4: Simplify right side
309,645.44x = 74,226,653,449.98 - Step 5: Solve for x
x = 74,226,653,449.98/309,645.44 - Step 6: Final answer
x = 239,714.99
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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.