Finding the Fourth Proportional to 397,975.65, 549,219.87 and 216,694.62
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Solution
The fourth proportional to 397,975.65, 549,219.87 and 216,694.62 is: 299,045.91
Step by Step Solution
- Step 1: Write the proportion equation
397,975.65 : 549,219.87 = 216,694.62 : x - Step 2: Convert to fraction form
397,975.65/549,219.87 = 216,694.62/x - Step 3: Cross multiply
397,975.65x = 549,219.87 × 216,694.62 - Step 4: Simplify right side
397,975.65x = 119,012,991,026.10 - Step 5: Solve for x
x = 119,012,991,026.10/397,975.65 - Step 6: Final answer
x = 299,045.91
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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.