Finding the Fourth Proportional to 292,217.12, 438,350.64 and 102,661.02
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Solution
The fourth proportional to 292,217.12, 438,350.64 and 102,661.02 is: 154,000.30
Step by Step Solution
- Step 1: Write the proportion equation
292,217.12 : 438,350.64 = 102,661.02 : x - Step 2: Convert to fraction form
292,217.12/438,350.64 = 102,661.02/x - Step 3: Cross multiply
292,217.12x = 438,350.64 × 102,661.02 - Step 4: Simplify right side
292,217.12x = 45,001,523,435.07 - Step 5: Solve for x
x = 45,001,523,435.07/292,217.12 - Step 6: Final answer
x = 154,000.30
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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.