Finding the Fourth Proportional to 341,781.21, 471,681.78 and 198,586.17
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Solution
The fourth proportional to 341,781.21, 471,681.78 and 198,586.17 is: 274,062.69
Step by Step Solution
- Step 1: Write the proportion equation
341,781.21 : 471,681.78 = 198,586.17 : x - Step 2: Convert to fraction form
341,781.21/471,681.78 = 198,586.17/x - Step 3: Cross multiply
341,781.21x = 471,681.78 × 198,586.17 - Step 4: Simplify right side
341,781.21x = 93,669,478,148.98 - Step 5: Solve for x
x = 93,669,478,148.98/341,781.21 - Step 6: Final answer
x = 274,062.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.