Finding the Fourth Proportional to 491,927.80, 738,237.30 and 211,646.20
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Solution
The fourth proportional to 491,927.80, 738,237.30 and 211,646.20 is: 317,617.99
Step by Step Solution
- Step 1: Write the proportion equation
491,927.80 : 738,237.30 = 211,646.20 : x - Step 2: Convert to fraction form
491,927.80/738,237.30 = 211,646.20/x - Step 3: Cross multiply
491,927.80x = 738,237.30 × 211,646.20 - Step 4: Simplify right side
491,927.80x = 156,245,119,243.26 - Step 5: Solve for x
x = 156,245,119,243.26/491,927.80 - Step 6: Final answer
x = 317,617.99
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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.