Finding the Fourth Proportional to 579,487.70, 869,231.55 and 180,125.30
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Solution
The fourth proportional to 579,487.70, 869,231.55 and 180,125.30 is: 270,187.95
Step by Step Solution
- Step 1: Write the proportion equation
579,487.70 : 869,231.55 = 180,125.30 : x - Step 2: Convert to fraction form
579,487.70/869,231.55 = 180,125.30/x - Step 3: Cross multiply
579,487.70x = 869,231.55 × 180,125.30 - Step 4: Simplify right side
579,487.70x = 156,570,593,713.22 - Step 5: Solve for x
x = 156,570,593,713.22/579,487.70 - Step 6: Final answer
x = 270,187.95
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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.