Finding the Fourth Proportional to 291,815.44, 437,732.28 and 92,137.68
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Solution
The fourth proportional to 291,815.44, 437,732.28 and 92,137.68 is: 138,209.40
Step by Step Solution
- Step 1: Write the proportion equation
291,815.44 : 437,732.28 = 92,137.68 : x - Step 2: Convert to fraction form
291,815.44/437,732.28 = 92,137.68/x - Step 3: Cross multiply
291,815.44x = 437,732.28 × 92,137.68 - Step 4: Simplify right side
291,815.44x = 40,331,636,740.31 - Step 5: Solve for x
x = 40,331,636,740.31/291,815.44 - Step 6: Final answer
x = 138,209.40
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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.