Finding the Fourth Proportional to 291,432.08, 437,221.02 and 91,744.40
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Solution
The fourth proportional to 291,432.08, 437,221.02 and 91,744.40 is: 137,639.55
Step by Step Solution
- Step 1: Write the proportion equation
291,432.08 : 437,221.02 = 91,744.40 : x - Step 2: Convert to fraction form
291,432.08/437,221.02 = 91,744.40/x - Step 3: Cross multiply
291,432.08x = 437,221.02 × 91,744.40 - Step 4: Simplify right side
291,432.08x = 40,112,580,147.29 - Step 5: Solve for x
x = 40,112,580,147.29/291,432.08 - Step 6: Final answer
x = 137,639.55
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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.