Finding the Fourth Proportional to 442,934.21, 664,507.17 and 143,415.14
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Solution
The fourth proportional to 442,934.21, 664,507.17 and 143,415.14 is: 215,156.98
Step by Step Solution
- Step 1: Write the proportion equation
442,934.21 : 664,507.17 = 143,415.14 : x - Step 2: Convert to fraction form
442,934.21/664,507.17 = 143,415.14/x - Step 3: Cross multiply
442,934.21x = 664,507.17 × 143,415.14 - Step 4: Simplify right side
442,934.21x = 95,300,385,494.02 - Step 5: Solve for x
x = 95,300,385,494.02/442,934.21 - Step 6: Final answer
x = 215,156.98
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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.