Finding the Fourth Proportional to 397,816.82, 549,001.70 and 216,519.99
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Solution
The fourth proportional to 397,816.82, 549,001.70 and 216,519.99 is: 298,805.47
Step by Step Solution
- Step 1: Write the proportion equation
397,816.82 : 549,001.70 = 216,519.99 : x - Step 2: Convert to fraction form
397,816.82/549,001.70 = 216,519.99/x - Step 3: Cross multiply
397,816.82x = 549,001.70 × 216,519.99 - Step 4: Simplify right side
397,816.82x = 118,869,840,264.58 - Step 5: Solve for x
x = 118,869,840,264.58/397,816.82 - Step 6: Final answer
x = 298,805.47
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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.