Finding the Fourth Proportional to 397,661.16, 548,764.26 and 216,376.68
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Solution
The fourth proportional to 397,661.16, 548,764.26 and 216,376.68 is: 298,595.39
Step by Step Solution
- Step 1: Write the proportion equation
397,661.16 : 548,764.26 = 216,376.68 : x - Step 2: Convert to fraction form
397,661.16/548,764.26 = 216,376.68/x - Step 3: Cross multiply
397,661.16x = 548,764.26 × 216,376.68 - Step 4: Simplify right side
397,661.16x = 118,739,788,681.46 - Step 5: Solve for x
x = 118,739,788,681.46/397,661.16 - Step 6: Final answer
x = 298,595.39
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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.